Of course not. You don’t push back on something like that. You hire a lawyer and let them do the pushing for you. If you contact the right NGO, they might even give you one for free.
There’s no way I’d sign any agreement with a company like Microsoft regarding an issue like that without a lawyer. I’d rather not disclose at all if those were the only options.
I mean when you're sixteen, you can sign a legally binding contract (might depend on the jurisdiction). Usually you have to be above the age of majority (18) or be emancipated before you can enter into a binding contract.
I don't know about you, but when I was 16, I never hired a lawyer, and none of the other 16 year olds I knew had either