I totally disagree with most of these responses.
Since when is it OK for a child to learn that adults can just apply stupid, pointless rules without any regard for fairness. It happens, but it isn't OK.
It shit advice for children to just 'suck it up'.
Surely there is a place for respectful resistance to this type of crap?!
If it was a work place there would be (possibly) be a union, grievance procedures, etc.
Why, because its school, do all normal societal rules go out the window.
Detention should be about punishing the child/young person's behaviour or poor choices or lack of work or a multitude of other things.
Not because the school put a blanket sanction on something that was outside the child's control.
I would be a royal pain in the arse about this with the school.
Got too many kids turning up late?
Address the individual issues.
Current monitoring system doesn't allow for individual circumstances?
Change the system.
I am not one of those sad-face Daily-Fail parents who want to send their kid to school in Uggs and green hair extensions; I am all for respecting the rules for the good of the school community.
However, I would not permit my child to attend that detention for this reason and the school could go fuck its policies and procedures.