Earlier quoted context omitted.
Are you sure your son is fine with you giving Microsoft his image and accepting all what you permit them by doing so?
God only knows. I guess if he shows up at school and people say, "hey, you look just like that Microsoft kid!", I'd feel slightly guilty. Seems unlikely, and I'd have reasonable grounds for a C&D.
https://www.microsoft.com/en-us/legal/intellectualproperty/c...