The law of back reactions in bitcoin.If a bank transaction was sent to a wrong account, that transaction can easily be reversed by the help of a customer service. It will be a plus to blockchain if a mistake in transactions happens like sending coin to a wrong address and it can be reversed.It will be nice if that can happen, Some many people here have really lost some money because of some mistakes in address.
The flexibility of bitcoin needs a backward reaction, A transaction that can easily be reversed if any mistake comes up,Bitcoin is growing and moving so fast that about 70 percent of world will ready to have bitcoin as a coin in there wallet.
No , that can be abused by many scammers if Bitcoin really have that option . For example fake P2P trades .
If you are looking for reversable transaction then you should use other payment option that we already have.
You should be the one who always have a control of your transaction it's up to you if how you want to secured your wallet but in sending fund you are also be the person who's in control of it so if you make a mistake for sending funds it's your fault .