I was in my early 30's before I ever touched a computer(i'm 39 now),I remember being scared stiff that I was going to press the wrong button and destroy mine somehow.lol
I will happily mess around inside the PC now,I have fitted new hard drives,disk drives and RAM and have reformatted two computers.I also recently fixed our older second computer after what a techie told me was hard drive failure,he said I would need a new hard drive but I somehow got it working again myself.It isn't really that hard if you use common sense. My kids also come to me for computer advice now,a few years ago it was the other way round.