Why do people so often overestimate the average length & girth of dicks?

I have suffered with this till the internet websites and data about sizes became well known. Being a very big guy anyway, 6’5”, I often compared my size to men in pornography as that was the only place you really see other erect penises. So when I would see these guys who were 5’8” with 7” penises having sex with these girls who were 5’ maybe and 100lbs, I’d think omg I’m so small . I would get really embarrassed and concerned about this even after several women assured me I was wrong. Even still with data on the internet I feel the need to measure and compare myself to the data. Not making any kind of brag just trying to relate how crazy having this issue is for me that out of a room with 1000 grown men statistically only 1 guy would be larger than me. So it has nothing to do with seeing statistics or data with me because even knowing this information I’m still concerned about it and have considered trying to do things to increase my size.

/r/AskMen Thread