In the much more popular hobby of cars it went away and has stayed that way in developed countries with the control infrastructure while in developing economies they still fix everything themselves. In another 20 years poor nations will still probably be on the same vehicles or cars from a generation are hollowed out while developed countries’ cars are even worse.

I see zero changes in this market bifurcation pattern regardless of industry. It’s not like people are making their own clothes much even in developing countries because we overproduce cheap clothes now anyway, for example.