I started vaping as an alternative to smoking...with my intentions to quit smoking. I didn't really think about the nicotine level thing. but after a couple of months, and realizing how easy it was (for me) to walk away from the cigs and the tar and chemicals and all that stuff I figured maybe it'd be cool if I wasn't addicted to nicotine anymore. I'd just vape because I liked to vape...not because my body demanded a "fix". So I set out to lower my nicotine very gradually and over the course of just about a year I eased down from 24 to 3.5mg. in small increments. And only when I felt my body was ready. I've been on 3.5 mg. since last Spring, and thought I'd be ready to drop again by now, but a series of unfortunate events and upheavals in my life and family and our health has slowed the process somewhat. When the time is right I'll drop down again...probably 3mg. next time. Then 2.5...then 2...then 1 or maybe just jump to 0. Dunno. I've been told that at 3.5mg. I'm not really addicted anymore, it's such a weak level. Maybe that's true, maybe not. But I have a mess of unflavored nicotine to work my way through (I DIY my juice) so ..there ya go.
EDIT...oh yeah. And I really don't want to quit vaping. I intend to continue on indefinitely, even at 0 nic. I like it!