I haven't worn a Speedo since I was about 12 and on a swim team. I don't know why all the fuss though. Women wear bikinis why can't men?
My fear is shrinkage

or worse yet, getting wood while walking around the pool deck looking at all the hot babes around the pool. I have been stuck in the pool before, having to wait before I get out until the swelling goes down or having to hold a towel in front of me.