I'm still sort of surprised by how "mental load" has been taken by those arguing it's not important as just remembering a few things. Maybe "mental load" needs to be rebranded. "Wifework"?
Making the bed isn't hard. Making ALL the beds, doing all the washing, organising all the childcare, negotiating all the playdates, doing all the meal planning, monitoring all the food/clothing/school requirements, rearranging all the schedules, researching and booking all the holidays, renewing all the insurance policies, calling all the tradesmen, preparing for all the concert/worldbookday/dance costumes (and making them), planning all the birthday parties, organising all the birthday presents, researching all the new appliances, monitoring all the homework, implementing all the SEN strategies, offering all the emotional support, etc etc etc etc is all time consuming. And that's before the day to day reality of cooking, cleaning, school runs etc.
And having money, which, reading between the lines, I think PrincessConstance has, makes it a lot easier. Here are some examples of me vs my much wealthier family member:
When I book and plan a holiday, I spend a LOT of time researching, comparing prices, considering options, and how to make it cheaper/more practical around me and DH's self employed jobs. When my sister books a holiday they discuss where they'd like to go, she googles "luxury hotel/ luxury villa in [insert place name]" and books it.
She has an auto-top up facility for her DC's school dinners - every now and again she might remind them they should not be spending too much but it's no biggie. I can't do that becuase if DS accidentally overspends I need to know so we can talk about it because I can't afford to add £30 a week to his account.
She has cleaners, and housekeepers and nannies and all the rest so when she needs new bedding or wants to try a new acitivity, she has time because she's not spending hours a week doing the cooking and cleaning and general maintenance.
She has the same "mental" load but the actual effort involved in actioning all that is significant less than what I have.