What is the origin of the idiom "give as good as someone gets" and when to use it?

The origin of the idiom "give as good as someone gets" is rooted in the concept of reciprocity and fairness. It reflects a fundamental principle of human interaction, suggesting that individuals should respond to others in a manner that matches the treatment they receive. While the precise historical origin is challenging to pinpoint, the idiom embodies the idea of balance and equitable exchange. It is used to encourage individuals to respond with equal or better treatment when they encounter such negative behaviors or confrontations.