Lol! I know! But i really don't think i can have. I mean, when i lived at home i did have my own bedroom as a teenager and then, when i first left home at 18 i did have my own room at night. But, during the day, i would never have been alone from stepping out the door. I was a student in a shared accomodation for the first year so shared kitchen and obvs out at uni with students all day and a pretty lively weekend night life. Even weekday evenings, i mind chatting in the kitchen til pretty late.
Then - into a shared flat. Pretty soon i moved my boyfriend in so i didn't even have my own night time space.
Then me and him moved in together into a rented flat, then bought a house together. I was on my own in the car driving to work for half hour each way (so, an hour a day during the week)
There must have been odd times when my partner went out without me but this is 40 years ago; my memory fails!
Then kids came along, obvs i was never alone then as we had 5 well spaced so over 30 years there. And i gave up my career and became a childminder so, from the moment i got out of my shared bed, my own kids and then 8 am, more kids in!
So - i'm not saying i literally share my shower with folks or am never driving myself but that i really do not think in 60 years a single day has passed alone. Maybe not even a single half day, who knows! I can be in a room myself (as now) but there is always someone else in the house.
Just as i thought i was about to get the house to myself for a few hours, hubby started working from home!
FWIW - i do think being able to live alone is a very important skill. But, when i was young, 40 years ago, i would have thought my life was pretty typical - leave the family home and pretty soon your own kids came along - go ask your 60 yr old relatives how much time they have spent on their own.
So - yeah, the odd hour or three. But never a full day. I really believe not.