If you're going to rent out a fully furnished apartment full of valuables to strangers who you can't vet beforehand the insurance costs will be significant.
I have a feeling AirBnB don't offer insurance because the premiums required (and the cost passed on to hosts) would make the entire thing unprofitable.
Hotels have insurance but it is probably much much lower than what AirBnB could provide to hosts because hotels already have a) security infrastructure in place b) your credit card details and c) your agreement to be held liable for damages.
I have a feeling AirBnB don't offer insurance because the premiums required (and the cost passed on to hosts) would make the entire thing unprofitable.
Hotels have insurance but it is probably much much lower than what AirBnB could provide to hosts because hotels already have a) security infrastructure in place b) your credit card details and c) your agreement to be held liable for damages.