I wouldn’t do it. I nearly backed out of mine, despite having 2 kids. The guy says to me: “are you sure about this”, and I’m “yeah, of course, the wife and I have discussed it and-“
“Wait a minute” he says. “Your wife? What does your wife have to do with it?”
“How do you mean?”, I said.
“Well”, he says, “she might not always be here, despite what you think. What if, for example, 2 years from now she dies, and you meet someone else younger. How would that person and you feel about your inability to have a child?”
It really sat me back, and meant I had to go and think about it for half an hour. In the end I went through with it. But with no kids- why?