Adding a bank account is actually a truth, that is, binding one of your bank accounts directly to paypal (you need to confirm it at the bank counter). The advantage of this is that the bank card has a validity period, but the bank account does not, so it is relatively more convenient to operate under the condition of binding the bank account (and it also increases certain risks).
If you want to transfer paypal money to someone else's account, you don't need to have money in your paypal account, but you must have a usable bank card or account (paypal does not provide loans). No matter how you transfer money to someone else's paypal account, you need a handling fee, and you have to bear the handling fee yourself. Of course, the handling fee is not expensive, usually a few dollars less.