Dear Queenie,
Once you have moved out of your parents’ home and have a place of your own, are you expected to knock on the door when you visit them or is it okay to just walk right in like you have always done?—Visiting Etty Ket
Dear Etty Ket,
Of course, this depends on the custom within your particular family, but the courteous thing to do always is to knock before entering – and wait for someone to say “come in.” Aside from being the polite thing to do, this has the advantage of sparing all parties any unpleasant (embarrassing) surprises.