Final answer:
Cultural traditions, religious beliefs, social structures, and laws shape marriage practices that typically endorse monogamy, though forms of polygamy exist globally.
Polyandry, where a woman has multiple husbands, is extremely rare. Social, economic, and political purposes often dictate marriage customs.
Step-by-step explanation:
The question about why a girl can't marry multiple men pertains to social and cultural norms related to marriage practices. In the United States and many other societies, monogamy is the standard form of marriage, meaning an individual is married to only one person at a time.
However, polygamous relationships do exist in various parts of the world, primarily in the form of polygyny, where a man can have multiple wives. Polyandry, the reverse situation where a woman has multiple husbands, is much less common, observed in about 1 percent of the world's cultures.
Cultural traditions, religious beliefs, social structures, and laws shape marriage practices, and in many societies, marriage is not just a personal choice but a union that serves social, economic, and political purposes.
Historically, girls have married at a young age to older men and often brought a dowry, which gave them some influence in marriage arrangements.
But ultimately, marriage often represented a woman's submission to her husband's legal authority. Practices such as polygamy are more likely to decrease with greater access to mass media, technology, and education.
Governmental and societal attitudes towards marriage and individual rights to personal decisions also vary globally, with some restricting personal freedoms.