I think that it's mainly alcohol and tobacco company's,that want it kept illegal,and they pay our politicians to keep it that way.Because they would lose a boat load of money if it's legalized.
...to say nothing of the tax glut, to be had by Uncle, on growers, distridutors, and users.
Like some anonymous fellow said when they ended prohibition,..."LET THE GOOD TIMES ROLL".
I think that the inevitable giggling and double entendre stoner jokes that accompany any attempt at a sober (look I can't resist it either) discussion regarding pot legalization are a big barrier to legalization.
And why does your tone suggest that you do not care about children?