BPA-free thermal paper is available and some chains have switched. For example:
Costco warehouses in the U.S. and Canada have changed their receipt paper so that it is phenol-free. This means it does not contain Bisphenol A (BPA) and Bisphenol S (BPS), which have been linked to human health concerns. - https://www.costco.com/sustainability-chemical-management.ht...
Because my consumer-grade fingertips don't run mass spec, I'm going to continue not touching receipts as much as possible. Hopefully some people who read this have a connection to a company that issues printed receipts.
