I didn't grow up with a cheating parent (as far as i know) but living life as an adult has taught me that marriage and relationships are and can only be what the majority of people see them as. Which if you're the type of person looking for someone to respect marriage and relationships is not good news.
And insane amount of people do not view marriage and relationships as anything of value. They don't even view themselves as having any real amount of value. So while my parents (as far as i know) didn't cheat on each other, i don't need that to have a very bad view of marriage and relationships.
Take this site for instance. How many married men openly talk and brag about cheating on their wives? Many right? I would imagine that while the amount of husband who do cheat far out match the amount of women who cheat for various reasons only men will brag about doing so to such a much larger degree.
Even going so far as to try to make the case that cheating is normal based on biology. Of course though, we're talking the same types of guys who would probably try to murder their wives if they found out they were being cheated on.
All of that has got to have serious psychological and emotional effects on women in general. Those types of guys are usually the ones who just know they're getting away with it. Meaning odds are very good they aren't. Which would mean a massive amounts of issues for the women i could be potentially dating. Not just the ones who've been cheated on but the ones seeing the guy not only cheating but bragging about it while having it be almost completely obvious.
The moral aspect of that is clear. A person who can't even respect a marriage or a relationship will have a much higher chance of cheating in other areas. That's not what i'm talking about though. I'm talking the overall effect so many people doing it has on others. Causing a cycle in which people cheating causes other people to think less of the damages from cheating and them either cheating or not having the ability to trust people. And that lack of trust spreading into many other subjects and keeping them from being as logical as they could be without it.
At that point the odds of people being faithful drops drastically. Leading to my view of the possibility of people consistently having good marriages and relationships. It happens. Statistically speaking it has to. It's just that the numbers are not in their favor.