But both parties also agree that there is no way for a website operator to determine a user’s physical location with perfect certainty. Aylo argues that Utah’s actual location requirement means that Aylo must “impose age verification on every user of their platforms, everywhere in the world” because it is impossible to know for sure whether any given user actually is in Utah.

It becomes a purely jurisdictional issue, as Server Location A sending data to Router Location A wouldn't be subject to jurisdictional in Location B.

At best, the Router would be liable for transmitting the data across state lines. But really, you'd think the Client would be the one breaking the law, by importing illicit data.

Of course, this would mean any attempt to prosecute the law would just bring the hammer down on Client side. A bit like saying you can only prosecute a cop in a drug sting for illegal possession.