There's no way it would be allowed in public. It'll be handled like alcohol & cigarettes.
But now a lot of pressure hangs on Colorado and Washington... they better do it right and not mess it up for the rest of us. This could lead to things like a greater industrial hemp industry, easing state and national debts, slowing the drug war, lessening the prison population, and bringing in more jobs.
And we can legally get baked of course. :D