This is still stepping on a personal issue, so if you throw e-cig gear at someone you have never had a conversation with about quitting or trying vaping it can backfire. Why not just give someone a box of condoms, because you think they have too many children already? See what reaction you get...
So if you are gonna do it - low ball it. Drop someone a couple disposables and see if it starts a conversation. If it doesn't - drop the subject. If it does, you can discuss all sorts of stuff - what it takes to get longer battery life - and why - moving up from a cigalike, tanks etc. But if you just toss a thing that needs filling and refilling, replaceable parts, uses batteries they have never dealt with before, has displays and buttons, and a separate charger - all you may do is intimidate someone who isn't a gear head into never taking the stuff out of the box. Anyone can figure out a disposable - if they actually want to try it.