Why does george call curlys wife a jail bait?

George refers to Curley's wife as "jailbait" because he believes she is dangerous and could lead men into trouble, potentially resulting in severe consequences. He perceives her flirtatious behavior as a threat to their safety and dreams, as it might provoke Curley and create conflict. Additionally, the term highlights her role as a symbol of temptation and unattainable desires, which could ultimately derail their plans for a better future.