And there sure weren't any when I was in school either. I was at the HS a few weeks ago for a GS event, and to be perfectly honest, I don't remember if there were any machines or not.
I remember the vending machines in college. There was ONE on campus that held Tab, and about a dozen girls there everyone morning before their first class!
The only vending machine we had in HS (35 years ago) was a fruit machine. You could get an apple or an orange. 5 years after I graduated they opened a student store with candy, supplies, etc.
When I became a teacher for Detroit Public Schools, there were several pop machines around the school. Kids would go class to class selling candy for fundraisers.
Maybe it is time to turn all this down a notch.