[robertpaulsen]

"That seems clearly ludicrous"

Only to the ignorant. Your ratio hides the fact that majuana use drops off dramatically after age 30. Why does this happen? Illegality?

If so, then adult use could be expected to increase if marijuana is legalized.

Legal alcohol is used by twice as many teens as marijuana. Despite the fact that alcohol is harder to get.

So, legalizing marijuana and making it as hard to get as alcohol holds no weight with me. The facts speak for themselves.

[MrLeRoy]

Your ratio hides the fact that majuana use drops off dramatically after age 30. Why does this happen? Illegality?

You think fear of arrest rises dramatically after age 30? I don't recall that happening to me when I turned 30.

[toothless]

"Only to the ignorant. Your ratio hides the fact that majuana use drops off dramatically after age 30. Why does this happen? Illegality?"

I thought you said they had graduated to H?

[MrLeRoy]

Adults use alcohol 11:1 over marijuana; the legal-for-adults drug is proportionately less used by teens. [...] If the only explanation for the disparity in the two alcohol-to-marijuana ratios is that adults steer away from the illegal substance, then it would follow that if marijuana was relegalized for adults, the adult alcohol-to-marijuana ratio would become the same as for teens---that is, adult marijuana use would increase more than fivefold.

That seems clearly ludicrous---leaving only the conclusion that the adult legality of alcohol does make it less used by kids than it otherwise would be.

Your ratio hides the fact that majuana use drops off dramatically after age 30.

21 to 29-year olds use alcohol 5:1 over marijuana. So we still have a choice between believing that relegalization would increase 21-to-29 marijuana use by 2-¹/₂ times, or that the adult legality of alcohol does make it less used by kids than it otherwise would be.