Most people have kids because of selfish desire. For women it's a biological urge that is hard to ignore unless they have something else that is there goal in life, which many do these days.
The drive to have a kid probably peaks at 35 and that's when a person starts to gain wisdom as their hormones diminish the clouding of the brain begins to clear. You start to see life for what it really is, instead of what you thought it would be. At this point you are now thankful you never had any children, when at one time you might have wanted a kid, now you do everything to avoid children, now your 50 years old, you are a sack of shit and you know it, you know you're closer to death with every breath, the volume of jizz you once shoot with pride is no more, this reminds you your last days are drawing near, but you still have time to be thankful you don't have kids like most of your peers working 2 or 3 jobs to save for retirement.
So learn from us older guys, those of us that have seen the carnage of being a father, those of us smart enough to avoid this trap.