Of course we love our kids, and we had (and still have) a lot of good times with them. But kids can really break your life and marriage, too - amongst my peers I can't tell you how many have a struggling young adult kid or two (with relatively serious mental or physical health problems), with no resolution in sight.
So stay lucky - having a child is a wild act of optimism. And if you want kids, don't wait too long. There is never really a good time to have a kid (just different trade-offs), so for the best chances for health, be as young a parent as possible. And men have a biological clock, too: e.g.: https://neurosciencenews.com/genetics-sperm-mutation-neurode...