As a kid I would be put to bed when my parents had guests and because I was such a show-off I would go to my mum's room, put on her nightdress and Jackie Onassis shawl, run downstairs, go outside, ring the doorbell and pretend to be one of the guests. I'd say, 'Hello, I'm Mrs. So-and-So.'
Mankind are apt to be strongly prejudiced in favor of whatever is countenanced by antiquity, enforced by authority, and recommended by custom.