Before I give my opinion, I just want to clarify that I am a lifetime non-smoker, but have always been around people who have smoked. If you sell a product that is 100% legal (with some age restrictions), then it is irresponsible of you, as a government, to restrict the use of said product to a point where it borders on illegal. It would, in the same vein, be irresponsible for Disney, as a business entity, to completely ban smoking in the parks. Let's compare smoking at MK to alcohol consumption at Epcot. Ask any non-drinker/former alcoholic who has been to Epcot during F&W, and they will tell you how much the open drinking/drunk people bother them and affect their enjoyment of Epcot. Sound familiar to all of you in the anti-smoking crowd? Using your logic, Disney should not allow any alcohol consumption on property, because it would bother a certain percentage of the guests, and it is not healthy. I would bet that at least some of you anti-smokers enjoy a drink here and there, and would definitely oppose a ban on alcohol at WDW. If Disney banned alcohol, people would still bring their own and drink as they were walking around the parks, just as people would smoke even if it was banned. Giving smokers adequate designated areas to smoke that non-smokers can stay away from, avoids this for the most part. Ban smoking, and you will have people lighting up next to you multiple times while you are waiting for an hour in the queue for 7DMT.