Between the massive corporate wealth at stake and the millions of people literally addicted to the product, it's hard now to imagine governments being able to ban them (and I lived through it).
Lol I'm a school bus driver and a number of my colleagues vape on the fucking buses. They imagine they're being super-secret about it - they're somehow oblivious to the giant cloud of smoke each hit creates. Never underestimate the power of nicotine addiction to force people to relentlessly push the boundaries of where and when.