How rude is it to not offer your cheek, if you aren't French, or just rude if someone leans in and you don't respond?
What are the rules for children - are the parents expected to encourage the children to go up and kiss the cheek of parents of their friends, as a fundamental social skill?
When do men shake hands and when do they go in for la bise?
If a French woman is actively teaching her children to do not do it,
at all, is that generally seen as odd? Or an acceptable quirk?
Are French people aware that some English may struggle with it simply because it isn't common in the UK (other than in Chelsea and Kensington) and what is their attitude to that, generally - that we should learn all about it tout de suite because we are living in France, or would they not particularly care one way or the other?