let me just hop into my time machine real quick and check
~AT FUTURE TIME/SPACE LABORATORY~
Scientist #1: Professor! The Time-Space Gauge is going haywire, sir! Professor: It seems like someone is going through a time passage. Let's see... Scientist #2: Professor, the charts are fluctuating rapidly, we got to do something! Professor: Hmm... let's get our anti-matter laser rifles ready, this could be anything. Scientists: Yes sir!
*All the scientists grabs their anti-matter laser rifles and readies them at the portal*
Of course not. Japan loves the idea of people interacting with random strangers to trade rare Pokemon and encourages it so much. Unfortunately, they don't realize that this is AMERICA, the land where video-games are made to shut people away, not bring them together.