I really hope it's not for health reasons. Lemmy is very set in his ways. He still drinks alot which you're not supposed to do with diabetes 2. I also got diabetes 2 and the pills I take look the same as Lemmy's. I have kept it pretty much under control though and eat sweets regularly so perhaps Lemmy has his diabetes under control. Diabetes 2, for those who don't know is when you aren't born diabetic but end up getting it as an adult, usually due to lifestyle (eating crappy road food would do it).
He didn't smoke in Toronto last year because of similar laws regarding smoking inside but most of the road crew were smoking as they were tearing the stage down. I recognized many of the crew from videos and documentaries over the years.