You see, such classes were determined to be harming childrens self esteem as it labled them as "not college material" and relegated them to a life of manual labor at low wages. So no longer do such classes exist as now everyone is college material just by virtue of their heightened self esteem.
I hope you were being sarcastic.
Industrial Arts is alive and well and also has a teacher shortage. You can indeed do a lot more damage with a flame cutter than with a butter knife.