I'm reading this thread and still trying to figure out: are you even trying to be nice to the people you deal with, or are you kind of a straightforward, get-to-the-point, take it or leave it type of asshole person when it comes to these interactions? Any chance 'the kids' are simply turned off by the prospect of having to deal with you for hours and - likely - being told what and how to do, at every chance you get?
No offense, if you pay well, it shouldn't matter when or not you're an asshole. You're not their dad, I get that. But are you maybe a little too tough? (in their feeble snowflake minds at least lol)