Please elaborate by what you mean my "in the US"?

Is this market asking if it requires ID to play in any circumstance in the US (e.g. requires an ID to legally buy in-person in specific US states) or if it requires ID to play in all circumstances in the US (required to legally play the game anywhere in the US)? How would it resolve if other age verification methods like the video selfie style age verification are acceptable as an alternative to ID verification, but age verification in general is still required?