Airbnb has two age restrictions. Guests under age 18 cannot make an account or book a stay. However they can be guests on an adult’s booking. In 2021, Airbnb introduced a new restriction on under 25’s in the US, UK, Canada, France, and Spain. The new rule prohibits this age group from booking “Entire Place” stays in their local areas unless they have at least 3 positive reviews, and 0 negative ones.