Yes, exactly, this is "kids being kids", we all go through a period of our life where we do stupid shit, related to drugs or other "extreme" things where risks of hurting ourselves is probably higher than the reward, but it's fun so why not?
But then we grow up and change in "proper" adults.
I think when we talk about "binge drinking" it's important to understand the context. While talking about stupid teenagers is fun sometimes, when it comes to if a country has a problem with binge drinking or not, we should probably restrict the conversation to binge drinking with adults, not teenagers who do stuff they most likely won't do when they are adults. As you said, most people eventually do grow up and adjust accordingly.