Paypal treats crypto currency as a threat to their services. If they will promote of accepting Bitcoin. People unaware of Bitcoin will simply switch to send funds using Bitcoin to Bitcoin instead of using Bitcoin to Paypal with a lot of higher fees.
Sure, paypal is the big kid on the block right now, but who's to say they won't start accepting bitcoin as one of many international currencies?
(Edit: I just added "after 5 years" and "never" as additional poll choices.)