>>534056
Not that anon. Here's the reason. If men don't have reasonable hope that they will pass on their genes, then they have no incentive to build or maintain society. It's pretty damn simple. If you don't know for sure your kids are yours, and you don't have a good hope of having kids in the first place, then men lose all incentive to do pretty much anything. This is why you get herbivore men and their equivalents all over the world. They have no hope of reproducing, and even if they did their women are sluts so they wouldn't have good hope of being sure their kids are actually their own. So instead of working hard and building/maintaining society, they work just hard enough to support themselves and maybe a collection of anime figurines. That takes a lot less work than supporting a family. And now governments are freaking out about it, and many are trying to make up for it by importing third worlders, which is only making society die faster.
So anon is right, but he is looking at it from the kid's point of view rather than the father's. But it still works, because when a kid sees how his parents' relationship works (or doesn't) it impacts that hope I mentioned for his own future. If he knows there was a good chance his own dad got cucked, that cuts down on his hope and motivation significantly. And of course there's the thing about your dad teaching you important things, regardless of if you're a girl or a boy. Things like discipline, for example. The things that cause men to build and maintain societies. And statistically stepfathers don't do this as well. Not only does having a stepfather in the first place already imply death/divorce/cuckoldry, meaning your childhood is already fucked, but having a stepfather around significantly increases odds of things like, you know, being murdered.
Society has rules about these things because rules about these things are what built society.