Post divorces are more than just money. They are a person well out of the game having to re-enter it. And, considering they ended up divorced, their ability to pick a mate is proven to be awful and just as likely to happen again.

You can end up happier on the otherside. You could also end up happier just sticking it out. The time of marriage where its completely impossible to make it work is often the type of person who is never going to make it work, however.

Your parents might have ended up better for it, but that's not a even close to guaranteed.