My sons school started doing this at the start of December. It was supposed to be to stop children hiding away during lesson times (a good idea) but unfortunately there have been 5 occasions when the janitor has forgotten to unlock the doors at either break or lunch. My son is as regular as clockwork so this interruption to when he can use the loo is really affecting him. I have written to the school but am not getting much back. Are there any rules surrounding toilet access that I can quote? We live in Scotland if it's important re: rules/regulations.