Yep, most of us can learn almost anything, and better yet, learn it for free. A year or two ago an acquaintance was begging for money on -- you guessed it -- Facebook to call a plumber because the trap beneath the bathroom sink had somehow got a hole in it. Now, I'm not super repair savvy, but I know this is one of those no-brainer plumbing fixes. I have two boys, I have removed that trap countless times to retrieve small toys or just clean it out. I've even replaced one. So, I told her the basic procedure, linked her to a youtube video, and told her she could do the whole repair for less than $10, depending on which pipe she picks out (PVC or chrome). Her response was along the lines of, "oh no, my dad says never mess with the plumbing yourself or you'll end up with an even bigger problem." Okaaaaaay. Personally, I'd prefer to take my chances on something simple than beg for money, but to each their own.
As for DIY skills, the hubs and I only had a few. Most I had learned from being absolutely broke with no other options than to just try. But, most of the big box hardware stores offer free tool classes. Habitat for humanity is a great way to learn skills just for volunteering on a build here and there. We know a couple that volunteered with habitat for a few years, and then took the skills they learned to build themselves a cabin. (They were not habitat recipients, just volunteers.) I learned to change my brake pads back in the day with the help of a Chilton's and Autozone (the internet wasn't quite as helpful for this sort of thing 17 years ago).
So sure, some people have the privilege of learning young, but all of us on this board have the privilege of unlimited free information and learning resources on our computers, so I think that pretty much washes out as "equal" in the long run.