@Dassi0 There is a setting you can have on your listing that requires guests to have a proper photo. This then allows you to cancel those guests who do not. Other than that there is no requirement for guests to have a photo of themselves.
@Kirsten266 Please see Airbnb info below. As it says if the guest doesn't have a proper photo of their face you can, with this option clicked, cancel their reservation.
To require a profile photo:
DesktopiOS appAndroid appMobile browser
Go to Listings and select the listing you’d like to require a photo for
Click Policies and rules
Under Guest requirements, enable Profile photo required