Maybe I am wrong, but a relationship is about both time and commitment, the two hardest things to value, yet we seem to try measure it in the most easily valued item, money. The time part is hard to measure in terms of economic value. My wife and her friends, albeit a small sample size, look at time spent together/apart as a bigger issue than money spent. The time she spends doing things around the house so I can be the bread winner is duly noted in my ledger. If I had to help with the things she has taken on as "her job," my time available to earn far higher hourly rates than she can would be less. So, even though I am "winning the bread" in some sense, without her support and agreement to disjoin me from other tasks that surely need to be done, the amount of "bacon I bring home" would be far less.
With that logic, it is hard for me to understand seeing it through the lens as merely "who makes what;" such as "this is mine and that is yours."
A guy cannot do a lot of the things women do. I can assure you in 99% of American households, women get tired of the guy effing up the laundry, not sweeping the floors, screwing up the grocery shopping, leaving crusted mashed taters on the dishes he washed, and eventually they just start doing more of those tasks themselves. As a result, they spend more of their time doing those things. In doing so, they incur an opportunity cost of not investing that time earning cash they could put in "their account."
When kids enter the equation, we (guys) can't give birth, we don't have our bodies completely changed by carrying children, we can't nurse the baby at 3am, the kids always run to the nurturing parent (woman) when they have pains and illness, and the list goes on and on. Not sure how all of that can be discounted in a discussion of who is earning what and how we allocate what is earned.
Again, maybe I am just out in the weeds. I am the most spoiled husband in America. My wife tells me she feels like the most spoiled wife in America. We strive to keep it a contest of who is most spoiled. We never fight about money, though we have to be careful with our budgeting. When we get busy and we fail to value the other's time and contribution to "the partnership," that is when we have some heated discussions.
Not that anyone needs my input, but here it is. If any young guy is thinking a relationship is all about who makes what and how it gets allocated, history shows that road ahead will have plenty of bumps with some of those bumps being really big, especially when kids enter the equation. If time could be easily deposited to, and spent from, an account, like money can with a bank account, I, and most men I know, would be seriously overdrafted. Just a fact of how marriage, his/her partner relationships, kids, and life works.