Do you know why paper towels are recommended for the first few days you have your chicks? Sometimes people do things without understanding why just because everyone says it's how things are done.
Perhaps others have different reasons for using paper towels, but I'll tell you mine and you can see if they make sense to you.
First of all, any paper towels will do. Carpet the brooder with long unbroken sheets so they will lie flat and not bunch up. Having this absorbent white flat bedding will provide (1) easier footing for tiny feet. (2) Poops show up better so you can monitor the chicks' state of health (3) Sprinkling chick crumbles on the toweling makes it easier for the chicks to learn what their proper food is and gets them to start eating more quickly.
Some folks fear putting new chicks on pine shavings for fear they will eat those instead of their food. (1) Chicks may sample the shavings , but rarely mistake them for food. (2) As long as chicks have been shown how to drink from their water bottle, they will drink plenty to counter any shavings they might swallow.
I remove the paper toweling after I see that my new chicks are eating their food and that they are all pooping normally. By day three, there should no longer be any concern about chicks misidentifying shavings as food and they can safely be turned loose on pine bedding and the towels removed.