Marriage, an ancient institution, has undergone significant transformations over time. From the unconventional "complex marriage" experiments in the 19th-century Oneida Community to modern shifts in perspectives, the concept of marriage has evolved. Presently, live-in relationships have emerged as an alternative to traditional matrimony, offering a departure from the conventional expectations of marriage. The growing trend of cohabitation, particularly among urban youth, reflects a societal shift towards more flexible relationship structures. Legal systems are increasingly acknowledging and legitimising the rights of cohabiting couples, mirroring changing societal norms. While the legal status of live-in partnerships differs from traditional marriage, it does provide certain protections. The younger generation perceives marriage differently, often considering it as a potential obstacle to a liberated life. A questionnaire-based study involving 100 respondents aged 18 to 25, mainly students and recent graduates, explores the evolving attitudes of youth towards live-in relationships and marriage, shedding light on changing societal trends and individual preferences. This research study explores changing perspectives on marriage and relationships, with a specific focus on the legal landscape in France. In 1999, the French Parliament passed a groundbreaking law that provided legal recognition to unmarried couples, irrespective of their sexual orientation. It delves into the impact of legal recognition and customizable agreements on the choices and attitudes of couples in France, shedding light on the evolving landscape of relationship structures in the country. We have the obligation to save and redeem the falling institution of marriage and to answer the dynamic demands of the evolving society.