Originally Posted by
wrp96
Yep. Normally if you see a 21+ age restriction it's usually because one too many people in the 18-20 age group did something stupid (typically involving damage to property or people) and so the entire age group gets punished. So the best bet is to look for places off the beaten path for the normal 18-20 year old in the US, avoid popular spring break spots, etc.
I do not remember the last time I had to show an id at a hotel in the US/Canada. Usually they only ask for my credit card... Unless the OP looks like a 14yo, I doubt they will ask for his id.