Dagger and sword is mostly centered around duels. If I wanted to have something else besides sword in my hands, I would take shield.
So every melee should have a shield, because its the smartest thing to do?
Thats like the "get a shield" argument, but in the sense that we should remove content of the game to not let players decide for themselves if they want survivability or not.
I forgot Parrying daggers were wide spread on medieval battlefields and before. We don't have rapiers so we don't have parrying daggers, they don't fit cRPG and if you want one replace a shield image with a dagger because you wont get double attacks any time soon.
Rapiers arent the only usable weapon with a off-hand parrying dagger. Nobody asked for double attacks if you read the thread.
Also the "not fit cRPG" argument is weak, cRPG have ninjas and exotic weapons may I remind you.