> I think people just give up at some point and stop trying to stay current with this stuff.

Or, they realize that 90% of it adds zero value to their lives. When you get older, you really do start thinking about how fast the years went by and how they are going to be gone before you know it, and do you want to spend any significant fraction of that time sitting at a computer, yet again wasting hours on "debugging tech issues" that a 20-something developer in California or Oregon has yet again foisted upon the world.

Also as you get older you have figured out that if you don't want to do something, you just pretend you don't know how, and eventually someone else will do it for you.