This is an issue for us as well. We have been renting our place for 20 years and never provided sheets or towels. Adiditonally, we make it very clear what is and is not provided and this has never been an issue with any airbnb guests.
It is also a cleanliness issue. I wouldn't trust sheets and towels that were not professionally cleaned and have been used by dozens of people. Granted, we will still wash and clean everything but it is not a hotel and the standards are different. What if I use a detergent that a guest is allergic to and they have a reaction or develop dermatitis? This is very frustrating. My cleaning crew will probably have to raise their rates which means I will have to raise mine just to cover my costs.
Anybody got recommendations on what linens and towels are best to keep for guests-is there anything that is like anti-microbial or something like that? Also, any idea on quantity--how many extra should I keep stored? I do not live in my place and never interact with guests so I have to get my cleaners to manage this.