I'm all in favour of people who can do things for themselves. If you can change your own oil, build a dresser or do your own taxes, my hat's off to you. You'll be a useful person to know when the millennium comes and we're all running around cold and in the dark, and being pursued by demon space monkeys, or whatever. But I still think there are a few things that are better left to the professionals.
Surgery comes to mind.
Alligator wrestling is another. Maybe flying a commercial jetliner too, if I happen to be a passenger. Otherwise, I'm all in favour of enthusiastic amateurs. With the possible exception of home-made wine. I'm far from a wine snob.