Consider that kids and adults have to navigate the real world where “I will pretend not to notice” is a common occurrence (a noticeable chunk of politeness is precisely this).
And another part of politeness is not abusing this by doing the annoying thing anyway. You (generic you, of course) know it’s annoying—your family has told you often enough.
And another part of politeness is not abusing this by doing the annoying thing anyway. You (generic you, of course) know it’s annoying—your family has told you often enough.