I don't think it's a question of "englightenment" -- from the survey story, it's that no one wants their photos bouncing around, as it were, on the internet. I have definitely noticed a divide between older and younger generations here. People my age (50) and up are much less self conscious about things like public nudity, personal grooming etc. But it does show that cultural habits can change.
I asked a French friend about the change in sun bathing attire on French beaches from less covered to more top coverage. There was a time one one could purchase just the bottom half of a women's bathing suit. As explained to me, the trend is partly the prospect of turning up on the internet as an object and also French women wanted more mystery to share exclusively share with their partners. Vive le difference.