Final answer:
Emily's father offers George marriage advice to impart wisdom and ensure he comprehends the importance of marriage, reflecting a common narrative theme where characters contemplate the societal and personal aspects of matrimony.
Step-by-step explanation:
Emily's father likely provides tips to George about marriage based on the textual references given because he wants to ensure that George understands the importance and gravity of marriage, as well as to offer guidance based on his own experiences.
In the context of the various stories presented, characters often reflect on the societal expectations and personal significance of marriage. These pieces of advice serve as a way for older generations to pass on wisdom and for characters to reflect on their concerns and hopes about union in marriage.