Comment by hermitcrab

>I'm saddened that it kind of seems like another hobby, like R/C planes or model rocketry, that has fallen by the wayside.

I think physical hobbies like modelling find it hard to compete with the instant gratification of online dopamine fixes. However RC planes and model rocketry are still a thing. If you know any school age kids interested in engineering or rocketry and they are in the UK, point them at:

https://www.ukroc.com/

The US, France and Japan have equivalent competitions.