You guys...

YES! Hate it with a vengeance. The young waiters in Jamie Oliver's call you guys. Even me.

Depends how it is used. You guys and You lot can be said in a friendly and/or respectful way. If whoever says it is being friendly and has a polite manner, it doesn't bother me in the slightest.

Actually, thinking about it, it might not be too bad in that situation. Could make you feel young and hip.

I like it and use it.

It is all inclusive and non ageist.

I hate 'guys'...and so does my son,Guy. He never uses it of course

I don't mind, nor care. In the great scheme of things ...

I also think that "you guys" is quite a friendly way of addressing people.

It used to be "youse guys", New york slang. Better than Y'all though.

I don't mind it at all and, as obieone said, it is inclusive and non-ageist.
I have literally come to this thread from the one about ageist 'compliments' and the irony has made me smile. I'm beginning to think we'd all better stop using any form of address at all, either ageist or non-ageist. I wonder when people will start objecting to sir and madam

I have no problem with it at all. It's inclusive and friendly.
This is the sort of pickiness that makes me want to use the expression get over yourself .

It is sooo much better than 'sweetie' or 'sug'!

As with 'kids' I don't really take any notice let alone get upset by it. It's like most things in life it depends on context I suppose .

I don't have a problem with it all, my sons use it when addressing both of us, it's just a friendly and familiar term and I'm glad they feel they don't need to be formal, I wouldn't want that. There are far worse ways of addressing parents I'm sure. I don't particularly mind it coming from waiters/esses who I usually identify being a similar sort of age as my sons it's just their generation's "speak". Possibly I wouldn't expect it in a more formal setting, but I think I prefer informal anyway.

This grumpy person just hates being called a guy.

Don't mind at all.

Like others have said it is a friendly greeting. Also like "peeps" informally. I hate being greeted as madam. Surely "may I help you", "good morning" and so on are fine and do not need madam stuck on the end. It's even worse when they get the script wrong and call you "sir".

It doesn't bother me, it's better than being ignored/invisible!

My DiL is American and addresses us as 'you guys'.
It doesn't bother me in the least.
DS addresses us as 'Ratbags'

janeainsworth ratbags
DS clearly loves you to bits!

I like and use peeps too.

I also greet some friends and family saying "Hello Sweetie/Gorgeous/Sunshine/Sweetpea/Poppet" and they tell me they love it because it makes them smile and feel good.

I don't mind the informality of it and yes it's ageless but is it inclusive??
Last time I looked I had a bit missing that stopped me being a 'guy'

Yes synonymous and the feeling's mutual
He is coming home for a few days next week (first time for over 3 years) and I can't wait to spoil him rotten

Frankly guys, I couldn't give a damn..

Mr Ocado calls me Madam. I like it.