My dad always wanted to instill in me the confidence to do things myself whenever I could, as a way to save some serious bucks, a way to build character, and
(sorry if it comes across as a bit sexist here) a way to not be taken advantage of as a girl (it happens). Similarly, my mom always said 'if you can read a recipe, you can cook'. Well, I have found that repair manuals and instruction booklets are almost like recipes, aren't they?
In my 39 years, I've done all kinds of electrical work on my house- replacing outlets, baseboard heaters, installing lighting and ceiling fans, to wall mounting a 55" plasma the other day, running all of the cable wires behind the wall.
I also recently pre-cut and installed a porcelain tile backsplash in my kitchen with a somewhat complicated diamond pattern.
A few years ago, I demo'd a room and re-sheetrocked it, taped and mudded it, painted, decorated, even re-finished furniture, giving someone close to me an 'extreme makeover' to her bedroom. The 'happy tears' from the recipient were well worth it!
As for my car, I don't do a whole lot nowadays simply because I can afford to have someone else do it and I'm usually very busy with other things, but I routinely changed my own oil, spark plugs, air filter, etc. (full tune up), rotated tires or changed flats, and once when I was just out of college (probably my biggest solo repair to date) I changed out my radiator in a grubby asphalt parking lot with limited tools and NO car ramps on my low to the ground Camaro. The only problem I kept encountering there was **** clearance!
I went to a used parts place and made sure they pressure tested it, put everything back in the way I took it out, and voila- fixed.
Personally, I think EVERYONE can do
much much more than they think they can if they have a little patience and read (or watch videos, as is common now).