Even in digital, (except for sports) I never took more than 2 or 3.
But to further reduce that, shoot film. You will quickly learn to do your thinking and composing first, instead of in post-processing.
Now, I either get the shot in one try (80%) or blow it in one try. In the cases where I blew it, another 3 attempts would usually not get it for me, so no regrets.
I like candid street and family photos, so it is more a matter of having the camera set and having the reflex to shoot at the right moment.