Randomness: Bachelor Parties

I have an idea. Why don't guys have their bachelor parties when they aren't getting married? Seems to make more sense. Especially when they don't even have a girlfriend or anything. Then having a bachelor party seems to make more sense. All of the debachery that seems to go on an some of these shindigs might help cheer a guy up that isn't having much luck with the ladies. I mean having a bachelor party right before a wedding seems inappropriate to me--at least the stereotypical one. But a bachelor party when you are down on your luck with the ladies...well that might be just the thing. A slumpbuster event perhaps.