Angelina
At home it is different, the girls have a few minutes for the toilet, enough but tight. My wife is in charge of supervising that, and in that it is strict, from the click of the open padlock to the click of the closed padlock, not one more second can pass. This means that they are never there all the time because a margin of time is reasonable.
If more than one of them is in the bathroom, they have much more time, but a maximum is always set.
I think it is a good way to preserve privacy, hygiene and security.