In Russia, certain groups of kids (children of low-income parents, of families with 3+ kids, orphans) receive a special ticket, one per day, allowing them to have a school lunch for free.
Sometimes they share unused ones (tickets don’t have names on them), which practically guarantees there’s a bunch of kids on their side - everyone wants free lunch.
And generally it was more of a thing to flash, not something to be shamed for.
No, though brain physiology does respond to hormonal shifts.
This doesn’t invalidate trans folks. No one says they are physically completely equal to cis people. It just doesn’t matter.
I must assume this was said in bad faith, if so, stop.