In the same way that it’s nobody’s business but hers whether a woman continues a pregnancy, it’s nobody’s business but hers whether a woman starts a pregnancy.
Nothing needs normalising. If you’re surrounded by people who can’t handle your childless/childfree status, get better friends and/or don’t discuss it with people.
You are wanting the general populace to go against humankind’s raison d’être and normalise the deliberate ending of the human race, and then getting cross that it’s not happening. I don’t think it’s parents who have it wrong, personally…