Replying to Above 18?

this is basically in response to the tobacco ad thread. I just find it hard to believe that 91% of the users on this site are over 18.
also I think that if you take into account the average age of active member it would be much less than 18.
considering how long this site has been running, if you think about all of the inactive accounts people created 6 or more years ago (bishop said most people make an account at age 12) those inactive accounts definitely boost up the age.if that is how it was figured out.
I think it'll be interesting to see how many people are actually underage, or just act it.