you can't plan centuries in advance.
the world even 50 years from now will be something most of us can't imagine.
most of Elon Musks's children were by artificial insemination and some by surrogate mothers.
Elon wasn't married to most of the women he had children with and with some of them it was only rumored that he was even dating them.
You're trying to take something that people wished for in the past and make it a reality in the future - but in the future nobody is going to wish for this.