I joined the army just after my 17th birthday, I served 4 years in the Cdn Armed forces before I was old enough to drink, 21 was the age , you had to have permission to get married under 21. When I did get married I had just turned 21, on our honeymoon my wife and I went into a bar, I ordered a beer and she ordered a coke, they asked our ages, she was only 20 , they wouldn't serve us, she had been married before and had a child, she still wasn't old enough to drink. You could smoke at any age, the Premier of Ontario gave all us army guys a flat 50 of cigarettes each Christmas,no matter your age.