make (one) see reason

To adopt or accept a rational, sensible course of action or assessment of a situation, especially after persuasion or a realization of error. I finally managed to make him see reason, and he agreed not to sell the family farm just yet. No one will ever make my grandma see reason about her smoking—by her logic, she's already got one foot in the grave, so why should she give up something that she still enjoys?

(make somebody) see ˈsense/ˈreason

(make somebody) begin to act and think more reasonably than before: Ah, you’ve given up smoking! I’m glad you’ve seen sense at last. ♢ It’s time somebody made him see reason.