I can see how shooting iron sights on handguns and rifles make you a better shooter, but I don't see how driving a stick shift makes you a better driver, not to get the thread off topic or anything.
Learning to drive a stick-shift tends to put you in more direct touch with the vehicle. You pay attention to your RPM's, the sound of the engine, your throttle, what gear you're in, and helps you to remember that you're in a complex machine that works upon the basic laws of physics (i.e. acceleration, deceleration, friction, and inertia), instead of being in a magic people-mover that has a steering wheel, along with a stop and go button (like it seems so many people assume), that just tends to confound people to no end when they don't work absolutely all the time no matter what.
"Well, I had an accident. I pushed the stop button and the car didn't stop."
"Yah, but you were driving 65 miles and hour in the rain and waited until the last 35 feet to try and stop."
"I know, but I pushed the Stop button, REALLY HARD; and it STILL didn't stop. So... accident. Not my fault."
"You didn't have an accident, you had an Absolutely Idiotic."
Whereas someone who is in more tune with their vehicle is much closer to understanding these things with greater wisdom.
It's the same with a Red Dot versus Iron Sights. A Red Dot is easy.
"That represents where the bullet hits. Pull the trigger and that red dot on the target turns into a hole."
"That sounds easy enough."
Instead of learning that the front sight and rear sight are meant to be aligned at a specific angle to the bore axis to ensure that impact of the round and point of aim, when the rear of the weapon and the muzzle of the weapon are properly aligned in a 360 degree field of motion, are consistent to a certain range.
Now, take both of these people with their understandings to a range and tell them to take a shot to their 9 o'clock without lining up the sights and see who fairs better with their overall understanding. Or better yet, have them take a shot at extreme range (100yrds or so) and see who gets closer.
"I don't know why I'm not hitting it. The red dot's RIGHT ON IT."
Versus:
"Due to my understanding of the sight picture's relationship to the bore axis at effective ranges, I can conclude that beyond effective range, the relationship is skewed so that the round will impact lower, so by raising my front sight above a proper sight picture, I can increase the angle of the bore axis and attain greater distance."
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That being said, I learned to drive on a manual. And I can drive an automatic like a Rockstar. Can the same be said for someone that learned on an automatic?
You should be trained with irons, but not having to shift does make driving much more care-free and easy. It's all preference.
(I'll take my shifter any day.)
~LT