If asked most car drivers will tell you their driving skills are above average. They will tell you this even while being cut out of a wreck after a high speed crash, even telling you that their above average driving skills allows and entitles them to drive at high speed.
Similarly a group of men will state that their cocks are of above average length, they may never have measured thir cocks and may not know what the average length is but they certain they are above average.
The average length of an erect penis is around 5.3 inches, while a flaccid (soft) penis, the average length is roughly 4.59 inches.
It's easy to boast about your manhood if no one is going to see it but when wearing Lycra speedos there will be bulge and you might get an erection. Getting an erection is bad enough but after boasting about your 8" dick you don't want your mates seeing you only have 5".
We keep hearing things like "I have a massive dick and it won't fit into speedos!" or "I wear shorts on the beach as they have pockets for my phone, wallet and keys!", but realy your bulge is unimpressive and your erection will be compared to someone's budgie.
Accept yourself as you are, wear brief underwear so you can wear shorter shorts in summer, and try out some speedos on a quiet beach where you can find some space. You probably tend to average!
Actually it's 5.6" in Britain and America:
https://worldpopulationreview.com/co...ize-by-country