When I was younger I wore the standard size suit, not to long but not to short,
but the long board short was not in style unless you were surfing. As I got older my shorts got a bit smaller, not bikini, but shorter, why BECAUSE THAT IS WHAT THEY SOLD IN THE STORES. However, when you go to europe, beaches of France, Spain and Italy, you do not see long shorts on anyone(except over the last few years some of the younger are in board shorts because AF shows this style andthey are in the stores where the young shop). The older your get and the shorter your short is probably due to an older guy in now more comfortable with his body no matter the size, a young american guy is too insecure-generally not always; the short short is actually more comfortable in general beach and or water sports, except surfing, jet skiing and waterskiing, where a bit longer is more comfortable at least for me it is; and finally, long shorts are not marketed in general to the older guy, when I say older i am saying 65+. I prefer a mid short, not always available every year due to fashion designs, so one year it is an inch short and one year 2 inches longer etc. so I have all sizes for all need(no thongs, backless or speedos for the beach) I do have a speedo for the lap pool during training, but I only wore them once, not because I care what people think, I just feel naked in them and a bit sexy as well and i would not know what to do if I got excited in the least with a speedo on so I do not wear it. I notice everybody's suit, but I could care a less what or why they wear what they wear, too many more important or friv. fun. ideas to occupy my mind.