On Dispersion of Outcomes:A reason why many don't consider liberal arts a good degree is the dispersion of outcomes. Yes, there are a large number of highly successful liberal arts majors out there. Let's say that every year 1 million students graduate with liberal arts degrees, and 100k with engineering degrees. 100k of the liberal arts majors go on to higher powered and higher earning careers than the average engineer. You could then say that there are far more liberal arts degree holders who earn more than the median engineer than there are engineers, and have plenty of anecdotes. You could also say that the median engineer earns more than 90% of the liberal arts degrees. However many of the common college major recommendations aren't because of their upper end potential, they are because of constrained lower end outcomes.
I see several posters attempting to associate the successful liberal arts degree holders with the typical graduate, or even worse with all students entering their freshman year declaring a liberal arts degree. And that's not a great association because there are big differences between those groups. In essence if you are going to recommend or pursue a liberal arts degree, you should know in advance the person is going achieve an outcome in the top quartile of all graduates. Or perhaps take some discrete steps to ensure that outcome, which Metalcat seems to be suggesting.
Even so, it's probably harder than you think to predict who will be in the top quartile. It's like picking will be in the final four or sweet sixteen before the NCAA tournament begins (try if you never have). Even the seeming best candidate can go out in the first round, while apparent mediocrities often linger. It's a whole lot easier to pick them after the tournament is over. To provide my own anecdote, I have a friend who has an English degree including some graduate work from Berkeley, but got bored of it and wandered the world a bit before moving in with his parent in a trailer in the far middle of nowhere in a more inland state. He fumbled around a bit before getting a teaching license in nearly as middle of nowhere in the state, and then took a job as a high school English teacher in one of the most hard-up schools in a nearby middle sized city. I'm sure he'll be successful as a teacher, and his students are lucky to have him. But he's obviously highly intelligent and deep thinking, and having seen the process I don't have the impression this was an outcome he hoped for at the start. And my impression, backed by some data, is that several people have an outcome more like this for every Laura33, and you may/probably will not know in advance which you are. (For more anecdote, the guy's wife has an engineering degree, but her real passion is beauty, so she opened her own independent beauty salon which ballooned to around a dozen employees within a year or two, before she decided it took too much time to deal with and sold it).
If you don't have a high degree of confidence and list of discrete steps you can take to guarantee an outcome in the top 25%, it might be worth looking into a more disciplined field of study.
On Critical ThinkingI confess, I don't actually know what critical thinking is. I'm fairly certain it's a meaningless word liberal arts majors made up to describe themselves, similar in concept to No True Scotsman. Fortunately, I have a piece of paper from an accredited institution that says I have a Bachelor of Arts with a major in Political Science, so I know that even if I don't know what critical thinking is I must possess this mystical ability. By the power of critical thinking vested in me, I assess that, to the extent I possess any,
I learned a heck of a lot more of it from my engineering degree. I further assess this is a typical outcome, and all or nearly all students who graduated simultaneously with both would have a similar conclusion. Sure it has its limitations, but the type of critical thinking taught by an engineering degree has a far more powerful impact on your ability to affect the material world, and also a far more powerful impact on your mind.
On Well Rounded Trade SchoolsAnother myth is that only humanities majors are well rounded. Now to be sure I am 100% in agreement that engineering doesn't teach as much of the liberal arts and humanities (another confession I don't think I know the difference between those) as I think it should. To demonstrate, I spent an entire extra year in school earning a BA because I didn't think I was getting enough out of my engineering degree. But pretty much any university will ensure its graduates are well rounded. Engineers regularly complain that they think non-engineering courses are a waste of time, but universities and colleges of engineering hold firm, insisting that they are universities not trade schools. My strong opinion when I graduated was that is was really wrong that only engineers could take engineering classes. I felt it would do a heck of a lot of good if liberal arts majors could take statics or even be required to pass it in some cases. I think statics should also be offered for philosophy and psychology credit, because those two majors could really benefit from the insights and methods of thinking. Statics isn't that useful in itself, but it's real name should be "introduction to thinking like an engineer."
In fact even trade schools pride themselves on well rounded candidates. As it happens my dad was the VP of a community college and responsible for much of the curriculum. An Associate's Degree in Welding from there requires 6 credits in English, 3 in math, 3 in science, 6 in social science, and 3 in humanities/fine arts. Incidentally my childhood friend graduated from this program and was making over $100k within a few years, so maybe an AA in welding should go to the list of well rounded high paying degrees to be recommended.
So a lot of the most successful people in the world are building those careers off of an arts education. But they aren't getting the skills to do so from their undergrad courses, they have to cultivate those skills the same way the STEM background CEOs have to. Somewhere along the way, they need to learn how to succeed in business, and really good mentorship is key to that at every step of the game, for everyone.
See, if you said "The real power of a liberal arts degree is that it allows you to coast through school with plenty of free time to work on the truly powerful life skills of making friends and learning how to network. This is especially true at elite universities where the most intelligent people in the world have little better to do than befriend and learn to interact with the children of the richest and most powerful people in the world before they all move on to bigger and more important things," then I would totally agree.
I've been using engineering and liberal arts as examples because I have degrees in both. There are plenty of others out there of course, but I have less personal insight into them.