"...The best solution, in my opinion, is to regulate it. Then you can control it. The only ID a dealer needs to see now is a £20 note. If you had to go to a shop [to buy it], you would no doubt need to prove how old you were. If you had difficulties, you could get advice about it. Prohibition is not control at all. It's just shoving it under the carpet and trying to ignore it; a foolhardy idea."