If you smoke you're an addict.
If you smoke you'll get cancer and die
If you smoke you'll give cancer to everyone around you
If you vape, you'll also get cancer and die, and give it to everyone around you.
If you smoke you'll be come more addicted than a crack addict.
Second hand smoke has never been thoroughly proven, when given the levels of tobacco smoke a person can reasonably expect to encounter. I enjoy a pipe or a cigar no more than once a month, but my doctor and insurance company treat it like I'm a two packs a day guy. I've been smoking an occasional cigar for years, never once have I ever run into some sort of addictive quality.
I have vaped in the past. All indication from serious studies on the matter are that nicotine by itself is a relatively harmless stimulant, with some actual positive benefits. It's bad for pregnancy, and some of the glycol solutions and heating elements may be bad for you, but again, we're talking extremely small doses, even if you regularly vape.
I love getting lectured about how I a terrible human being for occasionally enjoying tobacco and nicotine by a bunch hippies telling me about the miracles of pot, that will cure everything that ales you, and has no bad long term effects...