~snip~
Most of us would prefer a wallet that has a private key but still getting Paypal would give bitcoin potential investors.
No, they will not. Potential investors of bitcoin will not happen on paypal.
Paypal won't let you move your bitcoin even if you have the same paypal users. But let say thanks to Paypal, people are talking about this, and obviously, paypal this could be ignited and trigger their knowledge to buy bitcoin, but not on the Paypal account.