I think that that was a great era and a great era for boys for several reasons, a "golden age for boys" as everyone at that time called it, although I unfortunately missed that time myself since I was not born yet, but looking back on it it sure looks great for several reasons, including, but not limited to, the great, awesome and, yes, "far-out" and "groovy" clothes and hairstyles boys wore during that time. Those groovy Seventies-style clothes and hairstyles were great, awesome accessories that added even more to the appeal of what I say are by far the most beautiful, precious, wonderful times back then in all the world, universe and all of existence period. ...As I'm sure you can tell, I love plots like "MY 13" movie lots, and that's putting it very mildly.
Anyway, I also wanted to say that I really like those two actors that are the main characters in the film. The boy at the top with the groovy Seventies wallpaper in the background combined with the way the boy himself looks makes that portrait unmistakingly from the Seventies, it reminds me of that picture from the Italian movie Respiro that shows that beautiful blond boy in the forest wearing all that denim with that big belt buckle and that awesome Seventies shaggy hairstyle that's all wild and beautiful is great too, and I love how he's even striking a very "Seventies" pose that's kind of reminiscent of disco. Both are definitely keepers.
While watching that French movie "13 ans", means 13 years, I couldn't help but feel sad that I missed this wonderful time. It seems like things were so much simpler and more meaningful back then. Nowadays people talk about how we're "more connected than ever", and in some ways that is true because the Internet has brought the world together in a way that wasn't possible before, and if not for the Internet, I wouldn't have been able to see your articles on your blog and I wouldn't be able to talk to you about it either, and there is a lot of good that has come out of it, but technology is, like with most things, a double-edged sword and it can be misused as well and often is.
Some of the misuse of technology is what actually makes people *less* connected with each other than they've ever been, because, as you said in your article, now people will usually text each other instead of just talking to one another face to face when they can, and texting or even talking on the phone is not an adequate replacement for good old face-to-face interaction, although some people seem to prefer indirect contact like texting as they become more and more used to that type of interaction and withdraw from real social situations. Friends and families are often split up by the very same technology that they claim makes them "more connected" because everyone ends up being so busy doing their own thing in their own laptops or...whatever other little gadgets and gizmos they use instead of talking and interacting with each other and doing things together as a group that even when they're all in the same room together it can seem like each individual is all by themselves, and often in those situations they are by themselves mentally despite their close physical proximity to others. Communities and social life are, in a lot of ways, more dead than they've ever been because people have found things to replace them with and have been unwittingly conditioned by "the man" to feel as though they can't live without this technology, the same technology that serves to drive them apart.