I could probably write endlessly on this topic.
On one hand, I think for many/most people, children end up being the answer to the age-old question of "what's the purpose of life?" I mean, we are lifeforms and almost all life exists and is designed to reproduce. I too think our population is growing too rapidly for the good of our planet and don't think it's necessarily a bad thing for some people to abstain and not have kids while others do. Personally, I know the moment I have a kid (I don't yet), I will stop working to better my own life and all of my effort will be spent on my child. It will be simultaneously the best and worst thing to ever happen to me. I will love my child but at the same time I will stop living for me.. at least until they are grown-up and self-sufficient. But these days that's at least 2 decades or more. Some may think that's very selfish-thinking but as some already mentioned, earth doesn't exactly need more humans right now and the world isn't exact the best place (subject to debate). For me, I'd only decide to have kids for the purpose of bringing a new life into the world and also to have someone care and love me back. Yes, nieces and nephews can also care and love you when you're older but there is no bond quite like the bond between parent and child.
So what I'm really saying is I'd probably regret having children in the short-term before I've had a chance to travel, to spend some money on myself, etc. but I'd probably regret it EVEN MORE when I'm on my deathbed, thinking about legacy and only (if I'm lucky) have some nieces/nephews around to send me off. At that point, I may have travelled the world and have all the material goods I ever wanted.. but would feel totally empty. As if all I owned and accomplished were for nothing. So I think like many things in life, there needs to be a balance. Don't have kids too young before you're ready or else you may resent them... but don't completely forego the opportunity to have them if you're lucky enough to have that choice. In my opinion, a loophole in our society is to enjoy your life while you're young and then perhaps adopt when you're older. I don't know a single adopted person (adopted when very young) who don't love their adopted parents the same way as they would birth parents. Maybe this way you get the best of both worlds. Some say fertility is a gift that shouldn't be wasted, that children are the key to immortality, etc... I think there's probably some wisdom in those sayings.
a very interesting comment,
i remember reading somwhere,
that if you are at some point in your life your responsible for another life, another helpless life.
it changes your forever.
just saw a story about where there putting cats in the prison system for prisoners to look after,
or putting dogs in old age homes.
alot of people i know are kidless, but they have pets and they love them like a child.
my point is it is our genetics,
to love and care for another human being another life. even if its a animal.
for sure in our genetic makeup there is alot of varability, for sure as hell there is
but for the most part life is about propagation, the survial of the species and well our individual genetic code, its our nature,
its interesting to listen to people talk about there needs travel money fast cars whatever, being selfish. and how they describe it,
is a fast car the answer travel, its all just a diversion adrenalin for the mind, something to pass the time or maybe make us feel better about our self because were so insecure.
but even all of that is gentics.
you need some one to go over the mountain to see what is on the other side, maybe more food or not,
and you also need some one to stay at home were it is safe and sound
just in case there is no food on the other side of the moutain,
we think were so smart as being human beings and understand it all,
when all were doing is following our gentic code,
and yes there is to many people on our planet, seven billion soon.
but there is always war and famine and pestilence
the hardest thing you will ever do,
is be yourself