I’ve noticed that, besides the magnetism and drive for sex (which would be sufficient for a species to propagate), many people also experience the biological imperative (wanting their genes replicated) as its own separate feeling.
This makes no sense to me – it’s not a feeling I can personally relate to. I’d like to raise kids because I’d enjoy getting to teach them and share things with them, but I don’t care whether they are my biological children or not.
So it’s something I’ve wondered about. The likely why makes sense, but I don’t really get the what.
For whatever it’s worth, I also believe the two are separate feelings that aren’t always in alignment. I have no desire to procreate (gay man), but following the birth of my first nibling I felt this profound swell of emotion and drive commanding me to nurture and support its growth into an adult. It’s likely why, in my teens and 20s before I understood the full impact of the 2008 crisis, I wanted to eventually adopt children myself.
Biology is weird.