Paper towels play an important role in public restrooms as they provide a quick and easy way to dry hands after washing. They are also useful for cleaning up small spills or messes. The importance of paper towels in public restrooms can be summarized in the following ways:

1. Hygiene: Paper towels help to reduce the spread of germs and bacteria by providing a way to dry hands that is more hygienic than air dryers or shared cloth towels.

2. Convenience: Paper towels are easy to use and dispose of, making them a convenient option for people who are on the go.

3. Cost-effective: Paper towels are relatively inexpensive compared to other hand-drying options, which makes them a cost-effective choice for public restrooms.

4. Environmentally friendly: Some paper towels are made from recycled materials which are more environmentally friendly than other hand-drying options.

5. Aesthetics: Paper towels can be used to keep the public restrooms more presentable and clean, as they are more efficient than other alternatives in cleaning up small spills or messes.

6. Accessibility: Paper towels provide an option for people with disabilities or mobility issues that may not be able to use other hand-drying options like air dryers.

It is important to note that paper towels should be used in conjunction with soap and water for optimal hygiene.