"Why do women file for (initiate) divorce more often that men?" (paraphrased) I will provide my thoughts, because you posted this question more than once so far, and no one has bitten yet.
Based on my personal non-scientific experience:
1) Although women might have affairs at the similar frequency to men, they tend not to like to lie to their mates or be comfortable with it and may "come clean" with initiating divorce (an affair may be a result of a relationship that has all but formally ended). Men, meanwhile, may be able to "compartmentalize" affairs and extra-marital relationships and continue to have satisfying (to them) marriages. Based on small sample personal observations, anyway.
IMO, that is not the main reason, however:
2) Women tend to either earn less, or take on roles where they earn less, often because of child rearing or trailing spouse factors. Whoever earns more has a great financial disincentive to divorce when the other spouse is not able to support themselves. For many people, this is doubly true if they have taken religious vows to love and support their spouse -- how can you leave them to fend for themselves when you vowed to ensure that they are cared for, for life? In this financial case, it can be logical to hold on longer to try to make it work out, as there is no or minor benefit to divorce. Also, the primary income earner may be spending many hours outside of the home working, so having a difficult married life does not need to affect the majority of their day or mind, in the same way that it could for a stay at home spouse.
This is IMO -- I say #2 because during a rough patch in my relationship, requiring to provide spousal support for many years was a distinct disincentive to divorce. At least while married, my spouse would provide child care some of the time...and I had no risk of losing child custody, and I had no interest in looking for other relationships because work hours were so long and tiring, so it was easier to just stay married for a while, or until the kids were older. (Glad I did, because we got through all that).
#2) is actually a gender neutral motivation. The only reason it is skewed to women is that married women who get divorced, often have trailing spouse scenarios, or children, that reduces their income, more often then men do in your sample. I believe this trend is changing, but likely your sample covers years past.
This was interesting. The older I get, the more of my friends and relatives get divorced, and I'd say in my (non-statistically significant) experience, it is mostly women. The reasons, however, really do vary.
In the few cases where the divorce has been initiated by a man, in EVERY case, it is because the man had an affair. I know it's kind of a joke, but I have to wonder if it bears true - that men only leave a marriage if they have another woman waiting.
If you review the statistics on the % of work done "inside the home" by women, there is a clue. I mean this honestly, but in a marriage where both parents are working full time, but one parent is doing the bulk of the household and childcare duties - is there really an incentive to stay in a "meh" marriage if you are essentially parenting 3 "children" instead of two?
The following is an (incomplete) list of why some of my female friends and relatives left their marriages
- mental abuse
- physical abuse
- husband, after decades of being an uninvolved father, "found Jesus" and decided to "take over as the man of the house"
- husband became an alcoholic
- wife got bored. (That was 15 years ago, she's still single after the divorce. No kids.)
- husband refused to get a job, and just liked hanging out at home
- too many video games (lazy)
- not compatible (married too early)
- husband uninvolved father (golfing all weekend, not spending time with kids)
- husband abusive to children (CPS said, if you stay with him we will take your kids)
I can be an armchair psychologist and say that as women take on most of the "mental load" associated with the house and kids, if the husband isn't helping - then why bother? You end up sort of becoming his mother.
Now, how bad is divorce? It depends on the people involved. It can be done in a way that is beneficial to both. It's going to be more expensive than staying married, but doesn't have to bankrupt anyone. I have a recently divorced friend who says she finally feels like her old self again - because when her ex has the kids, she actually has a day (or two) to herself. That is hard to get as a parent.
My own husband is fantastic. I have a close relative who divorced a few years ago, after over 40 years of marriage. Husband left "I'm still young and I don't love you anymore!" (aka, had a honey on the side). My relative says she'll never marry again - why bother if you can just throw it away like that?
You kind of sound like you hate or look down on women. Maybe you don't, but it's just a vibe I get from your comments.