In the childfree (CF) world, there is a term called a "bingo." Bingos are the tired, overused phrases parents throw at those of us CF, especially women. A few of the most common ones are:
(1) You'll regret it later.
(2) What if you change your mind?
(3) You haven't met the right person yet.
(4) It's your duty as a woman.
(5) Who will take care of you when you're old?
(6) You have to give me grandkids.
(7) You're too young to decide.
There are so many of these insulting remarks that there are "bingo cards" full of them. That's why we call them bingos.
I would argue that we CF have put much more thought into our decision to be CF than many parents have. Some of us were raised with younger siblings and had to do childcare for them. We know how damaging it would be financially. We hear parents complain all the time about how tired/poorer/stressed they are, and we have decided we want no part of it, despite all the pressures put on us to have kids. In short, we DO know what we are missing; that's why we opt out.
I’m so sad for you. Kids don’t have to ruin you financially, or kill the romance, or ruin your sleep. I’ve heard a lot of coworkers throw these excuses around as to why they don’t have kids.
I have one friend who flat out told me that he is just too selfish and isn’t responsible enough to have kids. Always respected him for his honesty and willingness to readily admit it.