Just out of interest.
I earn relatively good money (although in an underpaid industry - social care), but my partner earns 2.5 times as much as I do (works in Engineering). We split our bills proportionate to take home pay.
We feel every privileged to have our income - although we are in a lot of debt so are by no means well-off.
I just wondered how much income others have and how they divvy up living costs.