No reason why they can’t but someone has to fix the utensils and stoves when they break and they elemenated these classes in that school district. Like it or not Industrial Arts are important to teach to our children along with cooking (use to be called Home Economic’s) too.
If I had studied plumbing in HS, I would be a wealthy man today.
When there is poop in the bathtup, are you going to call some service center in India?
Nope - your wife is going to want the floater out of there.
So I see a need for plumbers.
A plumber than can run a business - that man will be far richer than I will ever be.