Game concern

I dunno if this is the right place to ask, but here goes. I'm just wondering why the aot game for the switch 2 preorders are available in America but not Australia? I'm paranoid lol ig?? I'd ask google, but the ai answers are ass and contradictive. The game is like... good here, right? Sorry if this isn't the right sub, I just saw people discussing it here and wanted to ask! Thank you ^^