do you hate it when people confuse mexico with spain?

i was watching this show a while back, a lady went to a place where there is only mexicans so when i saw the outfits im like ''dude those outfits are from spain!'' and they greeted by saying''olay'' uh thats from spain too we mexicans say''hola'' not ''olay''. My grandma is from spain so thats how i know how they dress and stuff.