Quote Originally Posted by Peelee View Post
As others have said, the rarity of the Jedi for the rest of the galaxy is a big factor for this not being stupid, but another factor is that it's not an unstoppable weapon against the Jedi; if they have the precondition and reaction time to swing a lightsaber in front of a bullet, they almost certainly have time to get out of the bullet's way. Lightsaber deflection is their preferred defense, but it's not their only defense.
I think it also likely depends on if lightsabers are solid or not - and they seem to go back and fourth on that, so maybe it is a lightsaber setting that Jedi can choose to use or not.