Originally Posted by
harry0233
I never have any trouble checking in since I was 16. As long as you don't look like you're gonna trash the place, you will be fine. Booking a higher room category may also help you
Exactly. I remember checking into a hotel when I was 17 - no questions asked. There was a group of two couples, probably early 20s, and they hotel asked for id from all four of them.
I look a little older than i am, which probably helps, too. But, your behavior is the bigger factor.