Angelina
I agree,it seems they noticed chastity belts can be used,measured her,ordered one,closed their browser and didn't care about it anymore until it was delivered,without taking care to know at least the necessary before making their daughter wear one.
I don't think someone should be forced to wear it,and that masturbating and dressing sexy is not bad(even if @Lea seems to dress a bit too sexy for her parent's point of view,sometimes),but,if they decided it,they should,at least,take care to know what is needed to do for making it not dangerous and as manageable as possible for her.
So,if Lea's parents read us,I suggest to them to take care to learn some bases about it,or to not hesitate to ask us.