Mommy, I need to pee!
Is it LEGAL to deny a child a restroom when in a store???
That depends on who is denying the child. If you as the parent deny the child, then it is legal as your are responsible for the child. My youngest daughter has this thing about always going to the toilet in every restaurant or supermarket. Most times she doesn't really need to go, but it's like a comfort thing for her. Reassurance, that she knows where the toilet is should she need to go urgently. It drives us crazy. Often, we haven't even ordered yet and she's asking where the toilet is. Go to a supermarket, and it's the same thing. Of course, living in China, the toilets are often the Asian squatter type and very gross and smelly. This has resulted in my youngest needing to know when we first arrive, if it's a squatter or a western toilet.
However, is it legal for a store to deny a child the use of their toilet? Hmmmm, I doubt that there is any legislation in this regard. I reckon that it is probably up to the store owner. If they are child-friendly, they'll allow it, but if they're not child-friendly, then they will keep a poker face even when your child is doing the 'I'm going to wet my pants any minute' dance. I don't think you'd be able to sue them if they refused your child. But, what you can do, is boycot them and publicize the fact that they are not child-friendly.
Personally, I think that all establishments that cater for consumers, be it a supermarket, corner grocery or a restaurant should have a toilet available for customers. I'm currently on diuretics and when I need to go, I need to go! And, I'm definitely not a child. Deny me a restroom when I need to go, and I just might pee on your floor. That'll teach 'em.