You know the walls are too thin when, after sex, you hear your neighbor light up.

I have a question about this conceot actually

So I grew up in terraced houses from the 1900s or earlier, stone walls. Unfortunately, i could hear my parents talking, arguing and boinking from my room - but the last one only seemed to be a thing when i was a teenager. I could also hear the old guy next door walking around, telephoning and opening drawers.

But i was lucky enough to only have single guys who lived alone either side of me the entire time. So I wonder: do most people in terraces and apartments have to hear their neighbours having sex? Is that like a normal part of childhood? Other kids seemed to know about sex before me so I figure that might be part of it.

Or did my childhood home just have bad acoustics + insulation?