[ninefathom]

This comes back to something I mentioned elsewhere:

What's good enough for an advertiser trying to sell concert tickets is not necessarily good enough for enforcing legal prohibitions.

The location collection mechanisms built by Apple and Google that would be effective at a state or regional level within the US have been built for advertising, with secondary purposes of opt-in anti-theft. They weren't built for continuous, rigorous enforcement of legal prohibitions within a given sub-region of the USA.

I think you're asserting that e.g. 90% of TikTok users in Montana would be impacted by the ban, and 10% would find a way around. For advertisers, that's fine. For enforcement of a law? Bzzzzzz! That's gonna be arbitrary-and-capricious'ed right out of the courtroom doors.