It's common in Japan among cousins. (Still yuck yeah)
I'm from SEA and it's actually quite common to marry your cousin here. Not that I'd like to marry one anyways, my cousins like to troll me so I grow up to see them just like friends
Cousins should actually be treated like ur siblings and I can't imagine ever marrying my cousin that shit is straight up obnoxious,
Common? Or legal?
Both
Incest (cousins) Σ( ￣□￣||)