If party A and B are interacting in jurisdictions A and B, which party has to abide by which jurisdiction's laws?
Is the consumer moving into the producer's jurisdiction or is the producer moving into the consumer's jurisdiction?
Laws tend to apply more to the business than the consumer around the world and it's probably fair that this remains to be true, but really it is a hard problem when to parties separated by a border are just sending messages back and forth and you're trying to figure out who has to follow which laws.