 If there are children under 18 who've perhaps become addicted and now want to get off it, they would need a prescription. So there'll be a prescription model for under 18. So we think it goes a very, very long way to removing the ready availability for children and also the marketing to children. That will be a thing of the past. The new laws are designed to steer children away from highly addictive vapes containing nicotine. Dr Becky Freeman is from the University of Sydney.