@deweller
I sure hope this isn't the beginning of a fragmented bitcoin wallet ecosystem. Have a coinbase or a personal wallet? Oh sorry, that won't work. Paypal is only compatible with a Coinbase wallet.
I think it's likely they are assuming most users will want to be able to accept Bitcoin, but they won't necessarily want to hold Bitcoin. So they'll tell all PayPal users they can now accept Bitcoin, and not worry about holding Bitcoin (accepting Bitcoin will be like accepting VISA via PayPal -- the seller just receives USD, regardless of how the buyer pays). I'm not saying this is the only way it will work, but I bet that's the main way they'll roll it out.