I hit the big 40 in one a half years but still haven't sired any juniors. I don't want to bring any life on this planet, decided this long time ago. I love being childless, I wake up when I want, go wherever I want, no responsibilities, no money on diapers and school fees. I lead a serene life. The stress my colleagues go through with their children, I don't envy them. I don't see no point in perpetuating my gene pool.
Family members and relatives are giving me hard time though, why can't they let me be? Misery loves company.
Who else is in the same boat?
Of course it's abnormal just going by the numbers. But I suspect you mean if it's socially acceptable. It depends on your social circles and your priorities. Having kids is a life changing experience as you point out. That's another human being that is entirely your responsibility for at least 2 decades, possibly more.
But without the experience, I would not readily pass judgement on your colleagues. They probably go through hassles that you can see, and some challenges certainly become compounded by having a child dependent.
But there is also an upside. You get to see your kid grow up and make mistakes(about stuff you had no idea was supposed to be NOT obvious). People with kids live longer, on average
https://www.health.harvard.edu/blog/have-kids-live-longer-2017042411562. You can go to campouts and meet other parents and make new friends through your kids. I am sure there is more...
That aside, I believe most people want to leave an imprint of themselves in the gene pool. I think we are evolutionarily programmed for that.