I smoke also. I dont like it but find it hard to stop. I am in my early 20's and last year they put they age up from 16 to 18 in the UK. Now I dont get served in the shop for them and I need to stand outside and ask people to go in. Its bad what I do and maybe its a hint to stop. Also smoking stunts your growth....YES ok I am 6foot 2 inchs smoke since I was a young child.