I was just about to write the same thing. Big headphones were of course the way most headphones were made initially. And it didn't matter until Sony released th

I was just about to write the same thing. Big headphones were of course the way most headphones were made initially. And it didn't matter until Sony released the Walkman allowing to have good audio in a mobile environment. For years though, they tried to make the headphones smaller, though being far away from todays in-ear phones. I really think it was Beats what made people wear large headphones in the public.