Please get those kids wearing PPE!!!!!!!!! (Personal Protective Equipment) Things like respirators, glasses, gloves, etc. That should not even need to be mentioned. Teach them the importance of wearing them all the time. Have them do some research about isocyanate poisoning. That should help them see why they need to wear it. Sorry, just plain ignorant not to have them protecting themselves all the time.
Here is a link to a conversation we had in the paint & body section on here about the topic. I tell you this in hopes of teaching these kids RIGHT while they are young enough to start good practices to take care of the only body they get.
As far as the build...looks like they should have plenty of chances to learn plenty. Good thing there for sure.