Mental load is so much more than just remembering your MIL’s birthday.
It’s about having a background screensaver that’s running all of the time.
Out shopping? It’s thinking about picking up some Calpol because you noticed there’s not much left in the bottle.
Child has a health condition? Noticing that the referral hasn’t come through yet and chasing it up.
Realising that you haven’t seen a letter coming home about World Book Day so checking whether you’re supposed to be creating some costume.
Magicking up said costume.
Noticing that your child’s trousers are starting to look on the short side and getting some of the next size up - or probably, having already stocked up on the next size and getting g it out of storage.
Realising that the lounge paint is looking a bit faded so mentioning to your DH that it might be time to redecorate.
Thinking that your 5yr old might like to take some sweets/treats/cakes into their class on their birthday (because everyone else has done it in their class).
Checking whether anyone in the class has allergies/needs different treats.
And so on.
It’s about doing more than a list of regular chores. It’s about having a constant awareness of what needs to be done, beyond the easy, regular tasks eg/laundry, cleaning, cooking.
Some men are equal partners. Some men think they’re equal partners but don’t see what they don’t see. Some men have a lifetime of women doing the mental load and seem unable to break out of the mould.
The way society frames tasks for men and women is different too:
It’s about doing the washing up and cooking being household chores for women but “helping out at home” for men.
About looking after your child while your DH has an evening out being “parenting” but reverse the roles and it’s “babysitting” for your DH.
And let’s not even get into the different judgements and expectations for the two sexes.
Of course all of this is a massive stereotype and there will be exceptions and different degrees to which it applies.
The mental load is about knowing the buck stops with you - whether that’s a trivial task like remembering to pick up milk or putting in a repeat prescription for your child on time, or something more significant.
Having to make sure you don’t drop any of the balls because there’s no one behind you picking them up is knackering.
Sometimes that’s due to a shitty partner but often, there’s a very large influence from unconscious misogyny and structural sexism that influences all parties.