Answer: people in every nation are taking longer to commit to one long-term sexual partner
Explanation:
Marriage simply means a recognized union that's done between two people. When compared with the marriages that took place in the previous generations, a characteristic of marriage today is that the people in every nation are now committing to one long-term sexual partner when they get old rather than neifre whwjnit was at an earlier age.
Therefore, people in every nation are taking longer to commit to one long-term sexual partner.