How old do you have to be to rent a hotel room in canada?

for MOST hotels as long as you have a credit card you can stay. If you don't have one they usually want a deposit laid out and want you to be 21. Some do say 21 (with or without a credit card) but there are very few of those left.How old do you have to be to rent a hotel room in canada?
I think the age is 18...my brother stayed in a hotel when he was 17 though but I think my Dad called the hotel....:)How old do you have to be to rent a hotel room in canada?
18. You can't sign contrats till you are 18.