I was born in 1972, and taught a fair few practical skills (which I still use to this day) by my late father. He was Chinese, not unlike a certain Mr Ching in his demeanour

(hardly surprising as they both came from Malaya and were born in the same era)
For younger people (below 50) time and in many cases family is an issue. Either the kids they've produced, or a lack of "proper" family structures!
But even though my Mum and Dad stayed together for all of his life, he stopped doing as much carpentry and building stuff by hand when he moved out of London and took a better job in the petrochemical industry so he could support me and my sister. As he grew older, he also did less DIY service on his cars and got the garage to do it (despite being a motoring enthusiast for decades)
I
could build an e-bike but also do not have the time, plus my Wisper is just right. Any "moans" were to do with minor issues that the company made sure were put right very quickly.
BTW in East Anglia smaller manufacturing businesses are faring
better than the service industry through the recession...
Quoting the latest FSB Voice of Small Business Index, published yesterday, Essex FSB chairman Iain Wicks, said: “In a survey of over 1,200 members of the FSB, only a net 4% of respondents believe that business prospects will improve in the third quarter of the year, down from 16% in March. “The survey also suggests that here in the East of England 56% of small firms are operating below capacity, with those in the manufacturing sector faring much better than service sector firms.
Firms cautious over recovery prospects - Business - East Anglian Daily Times
Round here there are lots of smaller family run businesses, operating in niche markets or things which are too bulky to be sent over from foreign lands cost effectively (especially with transport costs increasing).
there is a company up North which blends tea from Asia, and the Chinese buy a lot of it!
TBH I would not be surprised if first final assembly and later parts manufacture of bicycles returns to the UK in my lifetime. Transport costs are increasing, as are labour costs in China along with lead times.