Sorry but the crypto you "buy" in paypal remains in paypal. This is as useless as it gets... In fact, its a trap. So you think paypal is better than using your own wallet? I don't think so. And what good is a bitcoin that cannot be used, just sold again to them? This is so foggy, they can even "pretend" to acquire the coins while never doing so, or do fractional reserve practices.
Yes, I can agree on this one but this is where the 'not for all who wants to stay anonymous' paypal isn't forcing anyone to use their platform, what I can see is that they are trying to convince people who does not trust crypto before making them think that Paypal isn't going to let them down with their investment. I personally don't want to use paypal for this since I know another platform could do it better. However this is a real adoption that will trigger the mass!