i say yes .. i live about 30 min from canada where i spent almost every weekend from my 19th birthday till my 21st at the bars, along with a great deal of other 19-21 yr old americans. alot of the bars in winsor are close to having more americans than canadians in them. i have seen no ill effects from any of this. its just shows that people under 21 can also behave when givin the responsablity of being able to drink.