[mytailorisrich]

> Two 20-something or 30-something friends will use "ouais" (and "yeah"), "putain" (and "fuck" or "damn") and even potentially "cette meuf" (and "that dude") without any issue

Isn't that exactly what I'm saying? Using those terms between friends (age is irrelevant and those terms are not just for the 'young') may be OK but you would not use them to even talk to a stranger in the street or in a shop if you have basic manners.

[potatoz2]

My main issue is with your use of the phrase "basic manners". This isn't a question of manners. It's like speaking Spanish in a French bakery: it's not rude, it's just not the right context. Similarly if you start vouvoyer your child, it's not "bad manners" it's just not done.

[mytailorisrich]

Strongly disagree. It is basic manners.

Children are taught not to say "ouais", or not to say 'tu' to adult they don't know, etc. because it is bad manners to.

If I'm asked if I want my baguette on the more crunchy side and I reply "ouais" this is bad manners.