Anonymous wrote:OP here. Student is 15/16 and not a US citizen. My kids are open to this (and old enough to decide) and of course I realize that I will be taking them on every trip and parenting them for the duration. I was just curious about the legal process for public school, visa for child, etc.
Public schools aren't allowed to ask about immigration status. You would need power of attorney from the parents giving you medical and educational decision making rights. That would likely be enough to prove residency (along with the residency documents you the adult have).