When a guest is doing IB or even a reservation request, airbnb automatically fills in the 'guest count' to one. Because the guest count when guests book is '1 guest', I often get couples booking while it says 'one guest' despite the larger group they are hoping to book. For my airbnb, I charge a different rate for 2 guests - . I am wondering why airbnb doesn't have the guest count at zero when booking, so that the guest has to enter 1,2,3 etc.
The booking would not go through with a zero guest (maybe the 'book' button would be greyed out until it was selected, for example) so the guest would be 'forced' to enter a guest count. It would make the guest at least think about what they are requesting - and probably they would put in 2 guests if there are 2. Not having to enter anything means they can skip over this vital information - and often the guest is a bit angry when they are told that the cost for 2 guests is more.
Similar to buying a shirt online, you have to enter the size and color before it allows you to go to the checkout window.
It is a small change online that would make a BIG difference to us hosts - and the guests would probably feel better about it too.