I have to make a suggestion that airbnb not allow locals to book homes especially young adults without ratings because from my own experience these people are only looking for a place to party. I recently experienced this and they trashed my place plus brought danger to my home where I have kids. This reservation was suspicious to me even before it happened as the people even had a new account. However, to maintain my “super host” I didn’t cancel it and that is an extremely dangerous rule to follow by putting everything at risk just to keep perfect scores. I recently found out you can cancel a certain number of these bookings only.
Let me guess, was it a weekend booking too? Locals + Weekend bookings are extremely risky and I normally decline. I recently made a post about this. Now, you have to be 25+ to book a home locally in my city or have positive reviews. This is a test and if it proves successful, it will be rolled out in other cities. Its a good step forward.
In Cape Town, we have the same issues (my neighbours did), and to avoid this, I just priced Fri and Sat nights higher and insisted on 3 day's bookings over weekends.
Have been with Airbnb for many years, and NEVER had such a problem since instituting these steps.