Re: Fixing stuff
I lodged with a couple in their 80's who between them couldn't change a light bulb. They were both physically active, so this had nothing to do with physical ability. They had both been brought up in an environment where you got somebody in to do that sort of thing.
I, on the other hand, fix a lot of things myself.
Other posters have suggested it's more about upbringing than which generation you belong to. I think this is closer to the mark. It doesn't tell the whole story though because that would lay the blame squarely at the feet of parents. This can't be entirely true because parents have a habit of trying to pass on what they're good at to their offspring.
I think the reason for the decline is because of the change in the aspirations of children. Back when i was a kid, everybody wanted to be an astronaut or a train driver. Now they all want to be pop stars or footballers.
Selling the idea that putting this engine back together is a worthwhile learning experience to the later is a lot harder than it is to the former.
I'll leave you all to discuss what caused the change in aspiration.