"you can lead a horse to water but you cant make him drink"
Definitely. How many excuses have all of us made when we attempted to quit smoking before trying vaping? I know I was chalked full of excuses, "This year is different." "Well, I already paid the $$$ for these cigarettes, so, after this carton, I'll quit."
I recently tried to get my buddy into vaping. I even hooked him up with the works: 3 eGo batteries, a 5v box mod, a couple of packs of LR and Standard Boge cartos, a fine sample of some the highest quality juices and he gave up (probably almost instantly), as it "didn't taste" enough like the Kools he was used to

Exactly as M put, one must want to quit before they generally have any success in doing so.