On Dec 19, 2019, the US Congress passed a bill that includes a requirement for you to be age-21 to be legal to either purchase or smoke tobacco or vaping devices/e-cigarettes in the USA.
On May 21, 2019, saying "Youth vaping is a public health crisis," Senate Majority Leader Mitch McConnell introduced this bill.
President Donald Trump is expected to sign this bill soon.
http://www.nytimes.com/2019/12/19/he...es-age-21.html
With regards to the vaping retail store immediately close to the Laconia High School, as discussed in this thread, this new law is expected to become effective sometime in the middle of 2020. This new law sure seems likely to undermine and deter the vaping store, there, next to the high school.
For the lakes region and in all of New Hampshire, this will set the age from 18 to 21.
Looking at over 100-countries around the world, this new USA-age 21 smoking law stands out as being three years older than the much more common age-18 smoking law, world wide.
Seems to me like a good, smart law that promotes a good personal health habit by keeping the 18-19-20 years old away from smoking as well as the 14-15-16-17 years old who go to an older buddy to get them their smokes.