Children and grandchildren all refer to us as "you guys" as do waiters in restaurants. Doesn't bother us at all, it's generational talk. I'm more perplexed by "can I get?"when we're out with our 20/30 somethings. When did that take over from can I have? Everyone seems to say haitch now, even presenters on tv, it was always aitch when I was growing up, sounds wrong, but is it?
See you later, often that's unlikely! but its said in a friendly way so doesn't bother me.
I have to admit I can't stand them people for example instead of those people, I'd have got a clip round the ear if I'd said that, maybe I did, my parents definitely told us off for grammatical transgressions and yes I heard that on the BBC from one of their presenters. Would of instead of would have. Pacifically
Why not Atlantically then ? My mid teen granddaughter annoyingly refers to a fringe as bangs, I didn't even know what bangs were until recently, I know it's American but how did they arrive at that, maybe old English 
Also anyone notice how "hey" is used as a greeting instead of "hi" in so many shows now, it sounds like an affectation.