Is it egoistic to want kids or not to want kids?

Both, as that is a decision of your ego.

>>16911674
It's very natural and a part of human instinct to want kids. It is going against human nature not to want them.

But then, you still fap, which is the urge to mate, which results in children, so I think you're fine. You'll probably just wake up wanting kids one day. Biological clock shenanigans.