Hi @Joan147, I can't access your listing on my phone from the post, but I suppose your problem is not a minimum number of persons to keep you company, but a minimum price to earn. At the moment, if you get a request by one guest only, you refuse it?
You should raise the riom rate and lower the additional guest fee or st it after two persons.
That way, the room is relatively expensive for one, but cheaper for a family.
From an economic point of view, if a single person pays the same as a family, it's more profitable for you.
If you fear to be alone with a single guest, ask for a long description , if the guest has no reviews. Most of mine follow that request with the booking , others after the first mail. If someone stays silent, I call airbnb. If they cannot get any reaction either, they propose to cancel. I had that proposed several times, I did not even ask for it. I took two cancellations and educated the others 😉
it's easier for a single guedt to book on the spot. In a family, you may have to wait for the partner anyway, before committing. But you can fill the time by contacting several hosts. - that's one of the advantages of IB: either they book or they don't, but they don't waste my time.