Answer:
Pronatalism
Step-by-step explanation:
Pronatalism or as also called a pro-birth position is the belief that parenthood is essential for social reasons. The belief in pronatalism promotes child-rearing practices and high birth rates. Supporters of this philosophy believe to limit contraception and abortion. Religion too promotes pronatalism to encourage reproduction which ensure them a large number of followers.
As per the question, the belief of Betsy's mother that Betsy would face problem, if she don't have kids, represents the social implication of pronatalism.