Along those lines... the other day there was that discussion about the play-based childhood from decades ago, and I feel sometimes people were romanticizing it -- I don't think the increased rate of physical bullying and pressure for fitting in were mentioned enough (though there were some mentions). Personally, I think I'd rather not have been born in the 60s. The Internet is directly or indirectly responsible for like 99% of my knowledge (speaking English included), which in turn is responsible for so much in my life that's different and better... If I look back to the folks my age in my home town (which I think I'd never have left), I don't desire their life AT ALL.
* Unlike for behaviors and social conventions, I don't think we have so much freedom with things like diets. Humans do have some hard dietary needs...