Why not use fingerprint to unlock gun?

At what point is there that piece of shit facial recognition gun. It defeats the point of a gun.

I cannot think of anything dumber than a facial I.D gun. Stupid. On what planet. Except for automated security systems with machine gun turrets.

Fingerprint guns have been around since Judge Dredd.

I was sure they came out before this press. I was also sure they used far more tech than conventional guns, not energy weapons, projectiles, but charged. It has been a concept for almost half a century. They have been out for a while, but the problem with them is they don't have much use, because hand held charged weapons haven't got any real range yet. Putting any recognition into normal guns, not running on batteries, just puts up the price tag and turns the gun into a useless toy. Unlocking your gun. What's up doc? The damn thing won't work, bang bang, got shot dead. Seriously stupid. Unless it already integrated it into its mechanics as an energy weapon.