I was wondering what happened to my college friends. Glad to know you are doing ok. I have come to realize that a lot of research is done by groups which are funded by organizations that pretty much have a pre conceived notion of what they want the results to show.
Maybe they need to realize this is not a message about how dangerous pot is but how the adolescent brain functions. If you had kids who had been drinkers since 12 I bet the results would be very much the same.
I know folks who have been smoking pot since about that age that are doing quite well now. I know of no one who was drinking at that age who has gotten anywhere with their lives.