PayPal doesn't allow you to withdraw your bitcoins though...
Right now, they don't allow you to do that. But they have already made it clear that this functionality will be added soon.
https://www.coindesk.com/business/2021/05/26/paypal-will-let-customers-withdraw-crypto-exec-says/PayPal Will Let Customers Withdraw Crypto, Exec SaysGlobal payments giant PayPal plans to let users withdraw cryptocurrency to third-party wallets, its blockchain lead said. Speaking Wednesday at CoinDesk’s Consensus 2021 conference, Jose Fernandez da Ponte told moderator Jeff John Roberts that a withdrawal function is in the works. At present, PayPal does not let users move cryptocurrency holdings off-platform, though it has let customers buy bitcoin (BTC, 4.57%) and other cryptocurrencies since October 2020.
Just give them some time. They implemented the Bitcoin integration to their platform less than a year ago. Adding additional functionalities will take time. They need to make sure that everything works properly, or else the coins can be easily stolen by hackers. I no longer use centralized exchanges nowadays, but I would say that PayPal looks much more secure to store my BTC, compared to any of the cex platforms. If you are a non-tech savvy user, and you have small amounts of crypto, then PayPal looks like a good option.