I will say, I did enjoy reading abriosi's assumption, though. As I get older I get more aware of the things I just "took for granted" that everyone knows (because nearly everyone in my generation does know it) are really just generation-specific.
Like when I learned most kids can't read cursive anymore. Or that, for a long time, my use of "emoji noses", :-), really dated me (and I still think it looks better with a nose than without!) So I admit I had a similar chuckle with the idea that putting two spaces after a period was a unique characteristic! Even well into the PC era, 2 spaces was the norm before proportional fonts became widespread. And I still had a heck of a time moving to a single space because it just looked so weird to me.
Like when I learned most kids can't read cursive anymore. Or that, for a long time, my use of "emoji noses", :-), really dated me (and I still think it looks better with a nose than without!) So I admit I had a similar chuckle with the idea that putting two spaces after a period was a unique characteristic! Even well into the PC era, 2 spaces was the norm before proportional fonts became widespread. And I still had a heck of a time moving to a single space because it just looked so weird to me.