Outdated "manners" you'd like to see go away

Absolutely!!!! Hate that!!! When I am in a crowded place & someone says, “God bless you” and I know that I still have one or two more sneezes coming, I feel embarrassed, like I am interrupting everyone. Just let me sneeze in private, please. ?
And then MANNERS dictates that we thank them....for saying "bless you" for a sneeze. Thank you so much for putting yourself out enough to say two stupid nonsense words to me. Let me get this door for you!