:)There's one problem with bitcoin. sometimes absolute freedom is too much freedom. People need to feel "safe" about their money, even if it is just an illusion. Banks, Paypal, etc give people that safety. Bitcoin on the other hand, where every single transaction is final and there's no central authority, makes most people a little uncomfortable.
Bitcoin can't be responsible for the mistake users do. Sending to the wrong adress, dealing with scammers ect. You can even say the same with Paypal in some way... And for record Payal doens't cover all type of transactions for buyers. For exemple virtual items.... And take a look at the sellers point of view: how then can be safe using paypal ? Nothing, to summarize