I "expect" they will like what I show them. If nothing else, they will have a skill they can use down the road. You know all those math classes your kids will take in public school? What if they don't want to be a mathematician? Same logic.

I've worked plenty of other jobs, from clerk, to auto mechanic, to IT, they'll be getting a dose of it all. This is what you do as a parent, you show your kids where you've been, what you've done, and the wrongs you've done.