>>510294144People are called to different things.
If he wants to make a change in the world its wise for him to hold off having a family.
Sacrificing having a family so you can change the world can be seen as selfless too.
She just wants him to have a family and kids because
1)she thinks it will make him less effective and bold
2) shes sneak dissing him implying there's something wrong with him for not having a family.