What I noted was the “surrogacy benefit”. Freeze your eggs, thaw them when ready, maybe even pay a surrogate to have it. Get the baby and a nanny and have the child at whatever age.
No confusion on my part, my point is that when you bribe people to have children later in life you can’t replace the years of their youth playing with their children and grandchildren. Old people have more trouble running and paying, rough housing than young people do. Note I am not talking about love, but physical ability and energy.