I think your take is too far. It’s just beyond reasonable.
If a teacher were outside the room and heard a loud crash, they’d go investigate. This is doing the same thing.
It isn’t identifying individuals, it doesn’t record any information about a person, it simply flags that somebody is breaking the rules and is worth taking a look.
This is about the least invasive technological solution you could get.
And it’s a heck of a lot better than alternatives like removing the stall doors.
So I’m not against using age, but binning it coarsely is the issue when it can be handled much more granularly.
64-65 is probably a negligible amount of risk increase, but 64-69 is going to be much bigger. Looking at younger ages the effect is more extreme where they’re probably charging late 20’s drivers more because they’re pooled with low 20’s.
Anyway, on average it probably works out the same, but in practice I never bin data where I can avoid it, since you get better information looking at it as a continuous range.
It’s a separate but adjacent problem.
No school should ever be allowed to take the doors off bathroom stalls.
That just seems to be the alternative that don’t places are doing to deal with kids congregating in the bathroom to vape.