[greenshackle3]

Sounds like you want (or already have) children to fulfill your own self-interested goals ('to leave a legacy'). That's a recipe for disappointment.

If you have children you do it for them, not for yourself.

And there are better, more predictable ways to leave a legacy. Having a kid is a shot in the dark; sure maybe they'll cure cancer, but maybe they'll be the next hitler, or more likely, they'll be an average joe with no lasting impact on humanity.