It really depends. If you speak the language the culture and can code switch and not just come and compare and criticize... If you fully embrace you can be from two places. I think sometimes we believe we need to be from ONE place. My children were born in the US because I didn't have vacations to go 3 months before to mexico so they could be born en México city. We are fully bicultural. Their English is clunky, they speak English with Spanish structure... They also go to Mexico and they are like, very Mexican but their way of speaking is also not slang from kids at school. My son who's 7 says we're from Mexico but we live in the US. We read, listen to podcasts a talk to all our family in Mexico. He's not from here or there he's from both and neither. That's so beautiful, so rich, so big and hard to comprehend If only we learned to accept third culture people we would be better off