What is the origin of the idiom "do as one pleases" and when to use it?

The idiom "do as one pleases" is a common expression that has been used in the English language for centuries. Its origin can be traced to the Middle English period, where the word "please" was derived from the Old French word "plaisir," meaning "to please" or "to satisfy." It is often used in discussions about personal choices, lifestyle preferences, and decision-making processes.