Prison Widow's Daughter Points It Out

There's been an issue at my daughter's school recently about teachers not letting some of the kids go to the loo! My 9 year old daughter came home from school the other the day and informed me that she had told her teacher this - " Miss, it is against my human rights to not allow me to go for a wee!" Has she got a point?
Either way, her gob-smacked teacher now allows her to go to the loo! That's my girl!