Nope.  Not in my opinion.  The other drugs of choice would just be substituted for marijuana if it were unavailable.    

Sex is not the only thing males aged 14 to 26 think about; but it's way ahead of anything that is in 2nd place for most of them.  If you are not male, perhaps you aren't aware of that.  If you are male, I can't believe that you have forgotten those years.