I am unable (emphysema=low lung capacity) or don't know how to stealth vape lol. I am 44 yrs old and just started back to college this summer. I have been vaping for the past 2 months and I DO vape in class. My teachers and classmates are fine with it. I wasn't real sure about my math class- my teacher is from Romania, but she loves the idea and wants her hubby to try these. Vaping is especially helpful during test taking and stress. Before that, I would chew the nic gum because I wasn't able to make it 2 hrs without a cig.
I would say, talk to your instructors 1st, show them your PV and tell them how it's helped you stop/control your analog usage, how these are perfectly harmless for those around you (just water vapor) and I'm pretty sure they will be fine with it