Yes paypal use crypto but instead of eth many users was expecting the TRON blockchain its faster cheaper and more used.
Eth transactions still too expensive i hope they start use TRON soon
Bitcoin lightning network bitcoin transaction fees are cheaper and faster than ethereum and tron transaction fees. Don't really know why they prefer to use the Tron network other than because Tron and cryptocurrencies other than Bitcoin can be controlled.
Not choosing to use bitcoin in transactions is just a matter of selfishness because you are already supporting bitcoin-hating groups.