Off-the-shelf clubs all seem to be the same length and lie angle, grips look different but the size seems the same.

Question: Who do these clubs fit?

Club manufactures seem to have come up with a standerd fit. I assume they're for the average person. Who is the average person? These clubs arn't for a 6'6" 300 lb guy, nor for a 5'2" 100 lb gal. There must be 1000's of people that could buy these clubs off-the-shelf and have the perfect fit, who are they?

1000's of readers await your reply!!

Keith