Divorces are ridiculously expensive. That was the major culprit for my generation. Only one peer of mine has actually retired before 50 (that I know of), and he stayed married. Everyone else ended up splitting up, which wiped all their savings. Or they went another path.
I followed the other path - total mental breakdown, severe depression followed by "non-retirement" - working freelance, as a co-founder and in interesting jobs while travelling. Turns out that being a well-paid employee for years and years isn't something I can actually do without getting depressed about it.
Both the divorce rates and the divorce cost are thanks to the divorce industry and the divorce lobby. We have a massive industry set up to encourage and profit from divorce.
Most countries don't have this problem, but it's a bigger problem than even the US' ballooning medical costs.
I'm not American :) The UK and Australia both have this problem.
I think it's less to do with the actual costs of the divorce, and more about converting one household into two. All the equity in the house gets split up, which usually gives a decent deposit for another house for each partner, but nowhere near enough to pay off the whole mortgage. Each partner needs enough rooms to host the kids during their shared custody, so a family of 4 goes from needing a single 3-bed house to needing two 3-bed houses. They need two cars, instead of being able to survive on one. If one of the partners gave up their career for the kids then there's alimony to pay. And so on. The legal bills are like icing on the cake.
Luckily I observe this from the perspective of having a happy marriage, which happens to be incredibly frugal compared to two single people living alone. A house for two people who enjoy being together does not need to be larger than a house for one person; although you need a larger house when you have kids. Of many objects you only need one piece, because you are not using them all the time. Cooking is cheap; it requires time, but if you spend that time talking, you don't really mind. Minus those expenses you had in the past simply because you felt alone or bored.
The expenses of two people living together are almost the same as of one person living alone. The extra expenses are mostly for the kids (including the mortgage for the larger house). Which means that if one person has a good salary, the other can "early retire" immediately. Or if both have good salaries, they can save half of the income, and perhaps retire as soon as the kids become independent.
I will argue against a system where there is a lobby designed to glorify and encourage divorce and stoke marital conflict, followed by a litigation which costs around $200k between both sides to bring to completion, which ends when one side or the other runs out of money.
At that point, in most cases, the custody and financial arrangement is designed to be ridiculously complex and inequitable.
I followed the other path - total mental breakdown, severe depression followed by "non-retirement" - working freelance, as a co-founder and in interesting jobs while travelling. Turns out that being a well-paid employee for years and years isn't something I can actually do without getting depressed about it.