This is the time to get a lawyer and sue.
No child that age cannot legally make any decisions as such. A five year old cannot sign a contract that is binding...heck a child must be 13 to go on kids websites w/out parent supervision
A judge will toss this school decision
“This is the time to get a lawyer and sue.”
Not everyone has the money to sue. This isn’t the kind of case a lawyer will take on contingency.