What is the origin of the idiom "like a kid with a new toy" and when to use it?

The origin of the phrase "like a kid with a new toy" can be traced back to the observation of children's behavior when they receive a new toy. Children often exhibit great excitement, enthusiasm, and a strong attachment to their new plaything. It can be used to describe someone's reaction to a new gadget, a thrilling adventure, a fresh opportunity, or even a newfound passion. Whether it's exploring a new hobby, discovering a captivating book, or embracing a novel experience, this idiom captures the sheer delight, curiosity, and engagement that individuals feel when they encounter something novel and exciting.