lol my currency is crypto so obviously buyer pays 5%
You are selling USDT, which is crypto but a stablecoin. You are offering to sell your USDT for PayPal, so you are supposed to pay extra according to me. However, it's your funds, and you can do whatever you want. I just expressed my thoughts. Because a PayPal user doesn't necessarily need to convert them to USDT to spend them. They could cash it out easily.
Remember, PayPal is a reversible fiat currency. Make sure the buyer is trusted enough and he will not charge back. It is better to use an escrow service before a deal, but I am not sure if anyone agrees to PayPal escrow. But don't fall for a scam.