Gee, that’s odd. Teachers not wanting parents to know anything about them.
The state stands In loco parentis when it comes to school and children. Perhaps unwittingly, many parents have surrendered their rights to the school district. Thus, when these things happen and the Administration backs the teacher, we shouldn't be totally shocked and alarmed.
This is not an attempt to bash parents...we are all busy. But when it comes to your own flesh and blood, it is VITAL to understand exactly where we stand vs the school. Increasingly, the PTA, arguing, and petitioning is useless.
Time to Go Galt and homeschool.