Another point, in the past we had to get out of the house to get away from siblings, usually at least three of them. We didn’t have our own room, so that didn’t get us away from the. Today, most families don’t have more than 3 kids. Fewer kids both inside and out.
I shared a room with my brother, who I idolized as a kid. He was a great big brother who let me hang around with him and his friends. He was an all-state middle linebacker in high school, but still made time to invest in me. Over 40 years later, we are still best buddies, and I cherish the memories of sharing a room with him. I laugh when I see people with 3 kids think they have to move so each of their kids can have their own room.