[stomachmonkey]

There are several types.

What you normally see in a convenience store is a self contained unit with nicotine. 18 to buy.

THen there are the real vaporizers, starter kits are on the $80 range. Rebuildable and you can put pretty much any liquid in them.

Since those devices are independent of the nicotine "juice" technically they are not age restricted although I've never seen a shop sell to minors. The shop I use won't even let a minor in the door.

Then there is mail order. If the kid has a credit or debit card difficult to control.