One thing that I am sure about PayPal is the fact that they are one of the best international money transaction company that we have out there. This is to say that as a mode of operation, they always take decisions that they believe that it is going to work fine for their customers. When it comes to linking up cards to the user account, I believe that it is always the credit cards that are allowed and the reason they said is is to reduce some situations with unnecessarily charges by the bank that you are going to withdraw your funds to. I make use of debit cards for most of my day-to-day transactions and the charges that I get on a monthly basis is somehow. I think this was what the management of PayPal looked at before deciding that it is not cool to allow users to link their debit cards to their accounts.