Final answer:
A person who does not believe in the institution of marriages is known as a 'misogamist,' not to be confused with the term 'bachelor,' which simply denotes an unmarried man.
Step-by-step explanation:
The term for a person who does not believe in the institution of marriages is 'misogamist.' Unlike a bachelor, who is simply an unmarried man, a misogynist is someone who opposes or despises marriage. This concept has been observed in modern society with trends indicating a shift away from traditional views of marriage. For example, in Japan, a significant number of young people are rejecting marriage, per a report in The Guardian in 2022. Historical literary quotes, such as from the Digest of Roman Law by Marcellus, also reflect on the status and expectations for women in societal structures concerning marriage. In contemporary societies, alternative lifestyles that do not include marriage are becoming increasingly accepted. Cohabitation, single parenting, and choosing to prioritize education and careers over settling down are contributing factors to this shift. Despite these changes, it is important to differentiate between various terminologies and their meanings, as the semantic knowledge of words like 'bachelor' and 'misogamist' shapes our understanding of these societal trends.