Didn't say the world is run on the principle that the dude had to stop vaping, don't motte and bailey me. I said the rationale that "it's just second hand moisture" is categorically wrong.

Water's not even the major component, most of the cloud by weight is probably glycerol or other humectants, and it contains whatever else is in the base oil too. There's no way to say it's harmless because it's only as safe as whoever manufactured the oil. Add in that many simple chemicals that have high safe exposure limits for adults have no safe exposure limits for small children, and it's even less correct to claim it's 100% harmless to kids.

Didn't say the dude had to stop vaping, don't motte and bailey me. I said the rationale that "it's just second hand moisture" is categorically wrong.

Water's not even the major component, most of the cloud by weight is probably glycerol or other humectants, and it contains whatever else is in the base oil too. There's no way to say it's harmless because it's only as safe as whoever manufactured the oil. Add in that many simple chemicals that have high safe exposure limits for adults have no safe exposure limits for small children, and it's even less correct to claim it's 100% harmless to kids.