I find your rule unnecessary cruel. Yes, cruel.
And unfair: because
some kids
might abuse bathroom uthorization,
all of them are treated like potential offenders? Way to show respect and trust.
Bathroom breaks are needed due to essential bodily function. Some people are healthy enough to be able to plan ahead, others aren't, and it's got nothing to do with any sense of responsibility.
There are so many reasons a kid might not go during their break: maybe they didn't need it then, maybe they needed to but didn't realize it, or maybe they did need to go, but the bathroom was too crowded and they didn't have time, maybe they hate going during the breaks because they get bullied out there, and trust me, having your head hung over a nasty school toilet is reason enough to make you ask to go during the lessons.
I spent 10 years of school with frequent UTIs, and the lessons weren't longer than 1 hour, so I can only imagine what 2 hours would be like.
I have this thing, maybe other people have it too: I don't feel I need to pee until it's almost too late. Meaning I could very well need to go, but not feel any sign of an urge, and when I do, then I have a 5 to 10 minute frame to find a toilet. And forcing oneself to go during qtandard bathroom breaks isn't an option.
Medical reasons are obviously an exception.
Yeah, the thing is, a child could have a legitimate medical reason, but not get the diagnosis until years later. And, as a result, they wouldn't have any medical certificate to show for it or request special accomodations, while the need is very much there already. I would know: it wasn't until I turned 33 that we solved that puzzle. If a kid needs to go, they just have to go, period. You're free to ask them to leave their cellphone with you to minimize possible abuse of the system. But you don't need to be barbaric about it. Or not let them back in if they exceed a pre-determined amount of time (one reasonable enough, some take a long time wiping for a variety of reasons).