No, I really wouldn't be surprised because I've been vaping for a decade, starting from enthusiast roots with high end mods and coil builds and then settling down into refillable tanks and off the shelf atomizers and juice.

As a former smoker I used ecigs to get off of nicotine by tapering down my nic content until I'm vaping 0 nic, which is HARD TO FIND on the shelf because nobody wants it. A lot of time the juice flavors are off/spoiled because they're sitting for so long.

It's NOT very common. Does it happen? Yes. But the whole thing is a pain in the ass and it doesn't "look cool" like smoking did at one point, so kids aren't just doing it for style points.