How need a bank account for PayPal to Cash app?

Actually, you can’t send money from PayPal to Cash app directly, that’s why you are required to add a bank account. If you fronting any issues in this, then contact the support team for help. Or, you can navigate your PayPal account to add a bank account for sending money into the Cash app account.
https://www.supporttechhelp.co....m/blog/cash-app-to-p