Hi yurt
"Of course you should alter something for an unhappy child- but that doesn't make schools 'inherently' places of bullying, institutional coercian, or weird culture."
Aren't they? Tell me how. If schools aren't places where bullying is a recurrent problem, then why do they all have anti-bullying codes of practice?
Are the kinds of social interaction found in schools, the kind of power structures, the way that a whole class (including the teacher) has to mould their interests to the demands of a National Curriculum found elsewhere in society?
"Personally I don't see the problem of doing something on someone else's timetable."
Do you not mind being interrupted mid-post? And then you get back and have completely forgotten the point you wanted to make. It's potentially like that for a child in school every time they get engrossed in something - then there is an interruption and a change of activity.
"I think children need to ask to go to the toilet so the teacher know where they are " and that would be ok if the teacher always said "yes! Of course!" - it would merely be a polite leave taking. Every one of us must remember a teacher at some time saying "no, dear, wait until xxx" and I bet many of our children have too. Informing someone that you are now popping out to the loo is a very different thing from asking, where permission may be withheld.