I've never smoked and don't like the smell of cigarette smoke so I've never really thought much about vaping although I have read some reports that say that while vaping can be used as way to stop smoking it can be as addictive and harmful to your health as smoking. There's even talk here in the UK of banning single-use vapes to reduce the number of school age children vaping.
I don't know about other countries, but here in the UK it's against the law to smoke or vape in public buildings, railway stations, buses, trains etc.