A lot of people switch to vaping because they perceive it as less dangerous than smoking cigarettes. So yeah, I'd say people care.

Well, this has prompted me to make sure any brand I buy is free from Diacetyl etc. It's not the vaping that's bad per se, it's the chemicals some brands are using in the flavoring.

I dunno, plenty of addicted people recognize their behavior is destructive and they care a medium amount about that. They just care about getting the fix more: human brains have a multiplicity of decision-making agents, and the long-term self-control ones don't always win, especially where these types of addictive agents are involved, but also when they're in the sort of life situations which make quick fixes (like de-stressing yourself by smoking) attractive.

A lot of people switch to vaping because they're half-assing quitting.

I quit smoking 10 years ago, cold turkey. You either give a shit about your health, or you don't.

I don't care if I get down-voted, or appear negative. Sack up, quit the stupid stuff.