Different nationalities play different?

Anybody else notice that allot of nationalities play mostly the same game?

Is it like this in most servers or just west coast?

I notice that :

Mexicans mostly play S&D sniper matches.If I ever go into one I ALWAYS see a mexican.

BRs Mostly play TDM,usually egypt.

Asians mostly play S&D mostly BlackWidow.

Americans and Canadians are mixed.

Is it just me or west coast is weird?

P.S.Don't know about other continents, since I don't play UK.
P.P.S.Iam mexican(love to go into sniper S&D O_o)