How is this any different than having to listen to your parents? I think the idea is that up until a certain age you need to follow what most adults say then you only have to follow laws after that....does it train you to follow laws? Yes it does...if we all decided to drive through red lights tomorrow a lot of people would die so laws/rules aren't arbitrary. Also I imagine your own parents would have some say in whether the command is reasonable most likely for your safety.

What if there was a fire and you chose not to evacuate and your teacher had to either deal with you or leave you behind...it might be a reasonable command that you leave the burning building. What if acid was leaking from the ceiling. Should they write out every scenario? A plague of Mosquitos or whatever....they just took the easy way out by being vague.

If you want to challenge this you'll have a better time if you got through your mom.....