I had already understood it that way. The underlying question is always "How would your income have developed if you had not had children?".
But of course under the premise that raising children was actually only your second choice.
So... we both work at a public research institute, have our salary group determined after graduation, and therefore everything regarding income is pretty "fixed". So I can say exactly what I earn full-time and part-time, and if necessary, I might just get a pay grade increase later because of parental leave. The salary difference between us is actually very small, since we have the same degree.
Actually, I enjoy my job, I wouldn’t want to stay home completely. But it didn’t bother me to work reduced hours (75%) because of the children. That was a good balance for me. Sometimes it was even less, then of course the income difference was correspondingly greater.
So, to be clear again, I didn’t want to put cash into the household because I knew that in the event of a separation I wouldn’t see any of it again. So, for example, not use my "spare" money for extra repayments. I had already paid my share of utility costs and "rent" (when working full-time). "Sweat equity" like garden maintenance was added on (including mowing the lawn, trimming hedges).
We each had a car, each bought and maintained their own (by the way, mine was by far the more expensive, bigger one , for hobby reasons). Almost all the furniture was mine, I already had it beforehand. I paid for the kitchen and sofa when they were newly purchased. For example, he replaced the dishwasher at some point.
I already noticed yesterday that the discussion drifted somewhat away from what I originally wanted to convey, sorry for that. Because I never wrote that I now wanted any payout from the increase in value.
I only pointed out the fact of the different asset development. And that it was implied that I had basically freeloaded because I no longer paid rent when working part-time. And that he was desperately poor and I had become rich. That’s what it was about.