Actually, it's interesting. The research that's come out most recently has said that even though young people do try to vape, very few of them actually continue to do it regularly, particularly on a daily basis. That makes sense. Young people are absolutely wired to take risks—to do things that their elders don't approve of. So I would far prefer, if it were my children, that they tried vaping than smoking. The key issue here is not to get too frightened about children taking up vaping, because the chances are that if they weren't vaping, they'd be trying to fag behind the bike sheds. So the key issue here is how do we help people quit smoking by trying vaping and to support them with vaping, and how do we make sure that that balance is right so we don't encourage young people to vape? 