I think you mean "humans"?
Nope, not planning to go Spock. I also edited the original question now for clarification.
having your own child allows you more control over the circumstances
I'd like to see some evidence how much control I can have. You're describing just the best case scenario, but having a child can also be incredibly exhausting if things go wrong.
Haven't had one of these for awhile. This thread is for questions or comments that you've felt silly about not knowing/understanding. Let's try to exchange info that seems obvious, knowing that due to the illusion of transparency it really isn't so obvious!