Have a wife and we really brainstormed having kids. Instead, we're leaning more on being the "Rich Uncle and Aunt" then leave our inheritance to our closest family members with high-achieving kids.
I got cousins' kids graduating from top schools (M.I.T, U.C Irvine, etc.) majoring in everything from Physics to EE and some double majors. Their kids and grandkids can probably make more use out of that money than I ever will. 10% will go to charity the rest to help the rich and successful in our family build a strong lineage.
I get to invest in potential all without the headaches of actually doing parenting. Solidify the top end and give them even more advantages.
Additionally, the way I see it, I won't have a brain to care when I'm dead anyways so I'm less attached to a lot of the points/ideas people make about having kids.