I have had young people under 25 call and say that they are couples about 23 or 24, in medical school, yadda yadda. I have even had these well written letters from seniors in college stating they want to just have a friendly get together on the beach. I always say NO, NO, NO! I have told the couples though that are slightly younger that I will take them with a large deposit, $2-3K and they never call back. Which just goes to show you that if they weren't looking to party and leave your place in reasonable condition, they would pay it! Bottom line is we got duped once and it aint happening again!
On the other front, it isnt just spring breakers. I can sleep 12 in my house (no sleeper sofas or bunks) all beds, and last year I had a family decide they would put 16 in it. I found out about and they lost their deposit money.
They left bubble gum on my headboards, a magic marker genious had a party on my bedspreads, they broke my lamp and the leg on my dining room table.
I also can not figure out why people do not think babies are people! You still have to bathe them and wash their clothes, all expenses to the owner. I know some rental companies exclude babies from their head count, but I find that ludicrous. They could be changing their diapers on your bedspread, like I had one do. Then they take them in the pool without swimmies on, and last week my guests called me to tell me that a large group by the pool left a turd behind!

Had to close the pool, drain some, then clean and leave close until the chemicals took hold. No to mention the same rentors were caught breaking in to the lockbox for pool keys to turn up the heat on it! This was all during Spring Break, so its not only the kids! the adults need some supervision too. Fortunately 2 owners next door to both my units are moving in full time and they will be my eyes and ears.
Donna