I think this is true in the US (from the stories I've heard/read about at least), I grew up in Southeast Asia though, there isn't much of a culture for over-prescribing (or prescribing anything really :p) people medication there. I've never even been medicated for my ADHD, and only 1 or 2 of my friends have as well and that was well after they turned 18.
I think tech really does have a bigger impact than we'd like to think, and certainly prescribing kids things like Ritalin at young ages when they're naturally a bit hyper definitely doesn't help either.