There has been a bit of a scandal in France just recently. It has been reported here in the UK as one of those summer stories about ‘those funny foreigners’, but it is actually quite serious, I think.
In many parts of Europe, topless sunbathing on the beach is accepted, relatively common and legal. And harmless.
However, in France, the adults in a family on one particular beach objected to three women sunbathing topless and called the police on them. You can read about it here.