You SHOULD be able to maintain your house yourself lol. If you want to pay a premium for a random person to do your chores, that's fine. There's nothing wrong with hiring a contractor, any more than there's anything wrong with hiring a maid. If you have money to throw at a convenience, that's awesome for you! But it's not about that.

My point is that when your pipes burst during a freeze, and the plumbers are all booked out 2 weeks, you'll be screwed if you A) don't even know the basics and B) aren't willing to try. Not only will it save you a lot of money, but you can help yourself (as well as family and friends) out of tough spots like that. It's a super basic skill, and your great grandparents would probably smack you upside the head for not knowing how to do basic repairs.

It's kind of like never learning to boil water. I don't need to boil water on a daily basis, but it's a basic skill that grown up humans should have. You could say that you have peace of mind letting Olive Garden cook your pasta, but at a certain point, you're just being willingly ignorant.