My Peruvian stepdad always complains about the rudeness of U.S. youth. Aren't most Gen.-Ys the same worldwide?

Or is it a cultural thing that he just has to get used to? Like, he always talks about how polite and friendly young people from Peru are. That they respect their elders, that they always make conversation with older family members, they're helpful, etc... whereas, according to his observations, we are cold, we barely greet our elders, we have no manners, etc. While it is true that young people from his country are definitely more gregarious from what I've seen, I don't see how this is necessarily better. To me they seem rather forward. Like, his nieces don't even know me, and they tell me things like "I love you so much, cousin!" over email. And my mom was oh-so-charmed when she visited Peru for the first time and all the girls were calling her "Aunt" and telling her how much they love her. Isn't that a bit too...loaded and heavy with syrup? How can you love somebody you have never met? I don't shower my mom with such attentions, but I know that if she ever needs me I'll be the first one to be there for her. Likewise, I never use the word "love" as freely as they seem to do over there. And yeah, maybe my husband, my peers, and I are not good at making friendships with older people, talking about irrelevant things just to "prove" we are gregarious, and we don't fake smiles as easily as they do... But why is that bad? They are not very different from us over there, but they are better hypocrites. Like, my stepdad always boasts that in Peru they are good girls and don't date until they are done with their studies.... but boy, if you saw their Hi5 pages (Hi5 seems to be a bigger hit over there, as Facebook is to us), you would see them in their cutesy G-strings and dating interracially-- which apparently is a no-no in Peru-- very racist country it seems-- ANYWAY, they do all this all behind their parents' backs. A very natural thing, but it bothers me when my stepdad always talks about how much more polite and proper and "better" they are in Peru. Ha. Better hypocrites, that is.