@Ashley197
My problem is that I have three bathrooms between four bedrooms, so it's a bit tricky to assign private bathrooms. One obvious solution would be for my housemate and I to share the downstairs bathroom and toilet, thereby freeing up the two upstairs bathrooms for the two guest rooms. However, that doesn't work because only one of those bathrooms has a toilet.
When the upstairs bathrooms were renovated, I had the option of having a toilet in both, or having a large walk in shower and bath tub in one but then no space for a toilet. I wasn't designing the space with Airbnb guests in mind back then, so didn't see the need to have a toilet in both bathrooms, which are next door to each other.
I do believe that private bathrooms would allow me to charge a higher price and perhaps get more bookings. It is also a factor in becoming eligable for Airbnb Plus. However, I don't generally have any complaints about the bathrooms being shared. There are enough of them that guests don't need to queue and often end up having one to themselves anyway. I think that guests who have a problem with sharing a bathroom simply wouldn't book my place.
However, I would say that this means I have to keep the bathrooms sparkling clean at all times. This isn't too difficult, except when I occasionally have guests who are very messy, in which case it is a bit of a pain. I have to really stay on top of it so that one guest is not put off by another guest's mess. In general though, if guests are presented with spotless, sparkly bathrooms when they arrive, they are more likely to be respectful and not leave them in a state.