Sevierville minimum age of short term renter

[Diana J Adams]

I have instant booking set up o my AirBNB listing.  I state renter must be minimum age of 25 and to provide name and ages of all guests but no way to enforce this o. Airbnb that I'm aware of.  

I received a new booking recently that only referenced 7 close friends getting together.  When I asked for more detail about the guests, I received a response from the guests' mother that it would be 7 - 19 year olds and that they all come from good homes and would take care of the cabin.  

I am not certain 19 year olds know how to manage a home but most concerning is if they drink, am I liable?  I don't want to break any anti discrimination  laws either - both with Airbnb or the city/ county.   How do you handle this?  Thank you for your input.