Yes, I'd like to be able to keep a longer run of groceries on hand. I'd like to be able.to wash curtains or duvets. I'd like to be able to easily cook the main course of a popular holiday.
I have a 20 minute drive to a grocery that has everything I need, so I want to do it less frequently. I use my duvet every night so it needs to be cleaned weekly.
Appliances are to do things. I want to do more things more easily.
Fridges store food. I don't want my appetite to dictate the size of my fridge, but the freshness of vegetables and such.
Washing machines wash things. I want to be able to wash all the things I regularly use without any loss of performance.
You can't tell me, that all things being equal, you'd prefer a smaller washer. Or that you want to think / guess about the available space in your fridge if you're at the store and looking at a purchase at the grocery. "Hmm I want this for a meal, but I don't think I have space for it" is not and ideal statement.
We have 400V/16A, three phases, in kitchens for the proper stuff. That's 19kW, if I remember correctly. Your strong power is like our standard power (240V/16A).
Here in the UK you can have 240V x 32A with three phases. That's how you get domestic 22kW chargers for EVs, lol. Regular single phase kitchen wiring is 240V x 32A giving us 7kW hobs.
Having a small fridge and going to the grocery very often vs having a large fridge and going less frequently tells you nothing about calories consumed.