I think it's pretty much the case all over France, especially in the rural areas.
About 18 months after we moved in to our house, the house opposite sold, and the neighbour told me that if you smile people think you are lying - so much for my open smiley 'Bonjours'.
We moved to France when dd was 9, just over 6 years ago. She jumped a year due to her birthday going from year 4 in the UK to CM1 overnight, and went up to college without any problem 18 months later. However, I will add that she knew the difference between the sounds of French and English when she was 2 or 3, due to holidays, weekend hops, and French dvd's such as L'Aile ou la cuisse etc.
I spent over £3000 when we still had money left going to a language school, and had to leave early when I had a nasty fall on unlit stairs (next time, lie on floor and ring pompiers, as then you have a third party attestation about your injuries), and ended up with 2 very badly sprained ankles which cause problems.
Register with pole emploi to get free French lessons with the Greta/Portail du Limousin/Champagne-Ardennes/Bretagne etc it's free, and they'll never find you a job anyway.
Dd's now at lycée about 120km away, and we were talking about moving, but suddenly have found ourselves much more accepted all of a sudden.
They've even accepted Christmas cake - pudding is going a bit far, though, and the parents of the girl she sat next to at school on her first day have started to tutoyer me.
The biggest help I got with my French was a 3-week stay in an obesity centre - I've learned some very rude expressions, and some very questionable jokes, and made 3 or 4 good friends, who I'll keep in touch with, I hope.
Centre was crap though, they reduced my medication without consulting/informing my specialist so then they bollocked me for not losing weight during my 3 week stay.
And finally, I'm now just as rude to my gp as he is to me - his language is about the level of the 'Full Monty'. I've stopped swearing at him in English as his wife spent 18 months in the UK, so don't know how much he speaks. I just use playground insults in Welsh, and there's not a cat in hell's chance of him understanding that. Have also given him recipes for curry, as he likes Indian food, although his mime of what a Brick Lane curry did to his bottom takes some forgetting 