Ive seen it go two ways, you start with the vape pod or all in one systems, get bored and you
1. Buy a big boy vape, roll your own coils, maintain and clean it, the whole shabang.
Or
2. Smoke cigarettes
I have seen many people choose option 2. The big vape systems are sometimes large, heavy, and clunky, require sometimes very publicly dis and re assembling a little contraption, carrying juice on you, lots of things that put fellow people off. Ive seen people be ridiculed for carrying around so much vape stuff. It kinda falls into the neckbeardy categories at least for my place/time, just because the first people to do it made it their whole lives and refused to talk about anything else, it got a reputation. It's both easier and less socially risky to just buy some cigarettes.
Though I will say smoking cigarettes is not without social risk. Typically women will heavily dislike the habit except for the ones that do it themselves. I've seen whole houses get addicted to cigarettes just because one person went out to smoke when they drank every weekend. I have never seen the same phenomena with vaping. Though I very nearly missed the target generation for things like juul.