The evidence is in

Electronic-cigarette campaigners have headed to Australia’s capital Canberra to convince federal politicians to lift bans on nicotine vaping products, according to a story by Michael Black at abc.net.au.
A recent CSIRO [Commonwealth Scientific and Industrial Research Organisation, an independent Australian federal government agency responsible for scientific research] report found regular use of vaping devices was likely to harm a person’s health, but it suggested there were likely benefits in replacing regular cigarettes with e-cigarettes.
Brian Marlow, the campaign manager for Legalise Vaping Australia, said the report quantified points his organization had been making for years.
“They’ve shown the gateway theory, that vaping leads to smoking, just doesn’t exist; they’ve shown that vaping reduces smoking rates; they’ve shown that it’s safer than smoking,” he said.
“This is not a harmless technology, it’s just significantly less harmful than tobacco and that’s what we’re trying to get across.”
Currently, there are various bans across Australia that restrict the sale of e-cigarettes and liquids containing nicotine.
Many vapers purchase products online and some don’t know that it’s technically illegal to do so.