How does that really work though? If you're arguing for BitCoin to become the next PayPal, in what way is it not a worse PayPal? (Fees for senders, confirmation delays, no fraud protection, etc)
How about not having your wallet locked because you failed to notify paypal that you were going to receive large amounts of money in the near future?
Bitcoin gives you flexibility that PayPal doesn't. You can't opt-out of protections that PayPal gives you in order to streamline your process; you either use PayPal or you don't. Bitcoin allows you to potentially chose any number of companies to provide services to you, or just roll your own solution.
Bitcoin transaction fees are a tiny fraction of the amount of fees PayPal charges. Confirmation takes about an hour and there is no possibility of chargebacks. As far as fraud protection, if you purchase groceries with cash what kind of protection do you have? Hopefully the reputation and integrity of the seller is enough in most cases. If you can't trust someone, use an escrow service (which still costs less than PayPal fees).
Point is you always have the option of sending the old fashioned way if you want. You don't have to use a 3rd party unless there's a specific function they provide for certain specific cases that you want. You don't have that option with regular money. You have to use some service to transfer money for you.