Also, it seemed that the couple were willing to move to a lower cost of living location/country so their safe withdrawal rate would take them further. I don't t

Also, it seemed that the couple were willing to move to a lower cost of living location/country so their safe withdrawal rate would take them further. I don't think children were factored into the base equation, although it's entirely possible one or both of them could work part-time to augment income during child-rearing years.