Cyndi and MsD- would you be in favor of legalizing methamphetamine, heroin and cocaine? Since you're arguing that smoking bans take away from letting "adults be adults", why not just legalize all harmful substances and allow each individual to decide on his/her own what cancer-causing toxin they ingest?
Added on 7/30:
I realize now that this question is kinda dumb, so please disregard it. I won't delete it because I know how we all hate post deleters.