On a more serious note, my friend and her husband had designated remits. She was responsible for domestic chores, never worked from the day she married. He was responsible for what he saw as man's stuff. He even chose and bought her cars without ever consulting her. She left all decisions to him.
When he suddenly dropped dead, she had no idea about their financial affairs nor any other parts of his remit. It was very messy, she didn't even know how to pay a bill nor organise repairs to their home.
In the end she had had to go to court, because this successful business man hadn't even left will.
That is why ideally, we should all be able to multitask and change roles.! If something, like the dishwasher isn't working and DH is busy, or procratinating I will have a look or go on strike.?