I have no who hasn't usually peed at home either. No big deal. I don't think it's a matter of him not being given a chance, I think it's a case of him having got on the toilet and not actually peed. By the time these kids are woken, dressed, fed, into their cars, and arrived, it might well be that they haven't had any morning fluids pass through their system yet.

I'm not sure what the problem is.

You don't mention that these kids are peeing themselves on arrive or having accidents before they can get their shoes and coats off. What's the big deal?