It is tough to see Bitcoin being a worthy competitor to paypal or any of the payment networks, unless we have the ability to scale up. The block size restriction is going to be an albatross around Bitcoin's neck. Once that is sorted out, the real potential of Bitcoin will become visible.
What has bitcoin got to do with paypal .it is not even related in any way. Bitcoin and its decentralized mode is far more trustful that any other payment models out there.In paypal your funds are at risk and they can withdraw your assets or froze your account but with bitcoin you control the coins and you have the freedom to save it without paying any charges right in you computer.