How old are you?
(heh nevermind, checked your profile..)
Im gonna geuss you spent a bit of time in the arcades back in the mid-late 80s, when a lot of the games were ambi- buttons on both sides like your describing
I used to play that way all the time, stick in the right, buttons on left, but after not really playing for many years I never went back out of habit.. I do occasionally if the game calls for it