Obviously, you can't stereotype all French children. They vary as much as children everywhere else. There are quite a few reports in the French press of child abuse, both sexual and physical so they are not all spoilt. What I have noticed in French restaurants is that most family parties include grandparents. I know my own gc tended to behave better when I was around , according to their mums. The children are also expected to eat the same food as the adults - although unfortunately a lot of outlets in the tourist centres now offers 'kids' meals' of the usual burger/nuggets/chips variety.
This woman seems to share the 'fluffies' view of France - perhaps she hasn't spent much time in the Arab ghettos of Paris, Marseille, Toulon or Touluse. There is just as much alienation, poverty and crime in France as there is in the UK, but most expats live in rural areas. It is like comparing Tower Hamlets with Tonbridge.
Peter Mayle and 'A Place in the Sun' have a lot to answer for. My own workmen were not in the last quaint or picturesque. Nor were they lazy, inefficient, expensive, or dirty.
I do like the way young people and children bid me 'Bonjour, Madame' when I pass them but I found when I lived in London that if I smiled at a group of young people (yes, even black youths, someone tell the Met) and said 'Hi, lads' they would usually respond pleasantly.
And yes, I lived near Dover and the shopkeepers there and in Canterbury would bring in extra staff when French coach parties were due.