I've never had an occupancy issue. I just go check in with maybe one person, and everyone else is somewhere else. There is usually a million people inline anyways and they wouldn't be standing with you. Also I guess out of courtesy we tried to put stuff away in the suitcases/closets so it wasn't apparent we had 5 people staying there LOL. But nobody questioned it. I'm young, so I've done it a bunch of times. RAIN at the Palms is a great club (in fact all theirs are great), if you are going on a Saturday check out Perfecto. It's not top 40, it's more dance/house but it's just a realllly cool club. They have amazing guest DJ's (like top in the world DJs spinning each week, if not Paul Oakenfold, he's the resident DJ). Fire, and dancers and all that fun stuff. Also it's really big so I didn't feel as packed. I went to a few others like Tao and it was SO full I couldn't move, it was no fun. You MUST be 21 to do clubs, drinking, gambling. They will card you, you will get kicked out so don't try it. This ain't no pansy security either. It's serious business. You need to be 21 to check in, the guests do not, but remember they can't be in the casino (you can only walk through) they can't watch you gamble, they can't go in the bars or the clubs. I went plenty of times under 21 and had a great time. But remember a lot of Vegas is about getting wasted and gambling. Best hotels for young people Planet Hollywood is my fav (they have a lot to do for the under 21 crowd) and Mandalay Bay, if you are on a budget Excalibur and Luxor are more than adequate. Just don't go anything under 3 star on the South Strip or 3.5 star on the North Strip. (Where as excalibur and luxor are do able, circus circus and stratosphere are not nice!) haha wow just noticed it's today :) but maybe this advice will help someone else!