The number of teens aged between 12 and 17 smoking has increased by 11.7% in the last two years, a study has found.

Between 2007 and 2013, several US states raised the vaping age to 21 as many believed e-cigarettes could addict youngsters to nicotine.

It recently emerged that California followed suit, encouraging e-cigarette regulation and increased the smoking age to 21.

This is quite embarrassing for American legislators, having the exact opposite effect of their intentions.

Lead author of the Cornell study Dr. Michael F. Pesko said there are risks with e-cigarettes, but it’s a mistake to regulate them the same way as normal cigarettes.

“We should regulate tobacco products proportionate to their risks, and e-cigarette evidence suggests they’re less risky products.”

Despite claims some politicians supported that e-cigarettes are a gateway to tobacco, statistics say the opposite in the UK, helping thousands quit.