Yes yes, I'm sure you're the studliest muffin living in your parent's basement.
Not quite. They're saying it could be detrimental to the mental/intellectual development of teens. And I have no doubt it would be. So is alcohol. Anything that alters the mind and brain chemistry in a still developing brain runs a higher risk of doing permanent damage than in adults. Particularly when it's abused and not just partaken in occasionally.
The wake 'n' bakers are the ones most likely to stunt their development.
Maybe that is why there are so many stupid people ruining our country today. They and/or their parents did too many drugs in their youth.