Some people invest in Bitcoin to become richer, while your investing strategy lets you kill two birds with one stone - to become healthy and to get a decent amount of coins in the future. I don't like to play a role of financial adviser, but I'll tell my smoker-friend about your idea.
Congratulations and good luck!
I know right. It's a win-win situation for him. Saving and investing for his future through bitcoin while going towards a healthier life by means of giving up his smoking vice. I gotta say that even though I don't know this dude, I'm proud of his decision.
Hope other smokers will do the same thing. And hope that you can convince your smoker friend, too. Good luck to you both.