A kitten will be considered a cat when it's nine months old. I once read that a cat was adolescent from about 10 to about 18 months of age... I guess that means s/he's an adult past 18 months of age.
Ethnically, Mexican Americans are a diverse population including Mexicans of Indigenous ancestry, Mexicans of European ancestry (mostly Spanish), and Mexicans of Middle Eastern stock (mainly Lebanese).
Modern Mexico is the world's most populous Spanish speaking country, and its national identity is reflected (and blessed) by the heritage of its native peoples, and their colorful art, cuisines, dances, languages and religious festivals.