Final answer:
It is true that boys who have closer relationships with their fathers after a divorce tend to show less aggression, and many children of divorced parents do not have a father figure at home. A strong parent-child relationship is crucial for a child's adjustment to divorce.
Step-by-step explanation:
The assertion that Foster's son Tommy struggles with his parents' divorce and seems almost vulnerable and in need of his dad's protection can be considered true based on the information provided. Research indicates that proximity to parents affects a child's well-being after divorce. In cases where boys have joint arrangements with their fathers or live with them, they often exhibit less aggression than those raised by their mothers only.
The same can be said for girls with joint arrangements with their mothers; they tend to be more responsible and mature. However, it is significant to note that nearly three-fourths of divorced parents' children live with their mothers, leading to many boys without a father figure in their household. Yet, it is also highlighted that a strong parent-child relationship can significantly aid a child's adjustment to divorce.