I read this book recently also. Ironically, I've been lugging it around with me from place to place for the past twenty years, but only read it last week for the first time. I suspect that what would have spoken to me in my 20s from the book is different than what speaks to me now. Twenty years ago, I'd have reacted more like the people who were commenting about feeling free to break away from their families, since that was something that weighed heavily upon me at the time.
Now in my forties, I don't feel very burdened by my parents' expectations any more, and what resonates with me most are the parts about not being a joiner. Meaning, don't rely on forming common cause with others to try to persuade them to do what you want them to do. You can't change others, and working to change them is only going to make you unhappy. Especially given the recent election and all the angst it caused, I can see quite a lot of sense in what he says about not being a joiner. That's a pretty contrarian position to take. I mean, to say that you're not going to register to vote or join advocacy groups because voting or group protesting is not going to accomplish anything...well, it's true, but it's a pretty controversial stance. Still, he's right; in the whole scheme of my life, it doesn't really matter who wins the election when both candidates are "deplorables." And I'm better off focusing on what I need to do to win my financial independence and live a happy life versus worrying over trying to influence the election in any way, including even voting in it.