Bitcoin is easy to use and transfer to buy online. it's no fee and no tax and it's anomynous.
Payment online is very fast and safer than fiat.
Well yeah but I don't quite agree with you about fast and safer payment. Because the transaction confirmation time is still a bit problem, it's not true to say this. And also, I don't get what you mean by saying that it's safer than fiat, how safe is it or can we even compare bitcoin and fiat money this way?
I understand on the thing on what he would like to mean that bitcoin transaction are really safe since you could transfer funds directly to a person without any problems and regarding with confirmation it's not really a problem at all since transactions are irreversible. Fiat can't be replaced by bitcoin no matter what.