I am not saying it's either right or wrong. I personally think its the individuals decision.
I don't indulge but I also don't judge others if they do, it's their bussiness. I do however have a problem with those that light up (anything, cigerettes, weed...)at concerts, this affects MY HEALTH. With that being said, IMHO if it's illegal it's immoral. Websters defines moral as ;conforming to a standard of right behavior. If you are breaking the law you are NOT conforming to a standard of right behavior.