Why Americans do not men wear speedo ?

[thisweirdthing1985]

nice thread. what really amazes me , as someone wrote above, is why when you go to the beach you never seen guys in speedos, or very short swim suits, but this kind of swimming garments are still being sold in internet, and not only a few. not all the buyers are swimmers. so I have to think, that maybe there are lot of men like me who buy it but have never the chance/ the courage to wear them?
so another question would be: why many americans buy speedos, but you'll never see wearing them?!