Определение и Значение "on one's doorstep"

What is the origin of the idiom "on one's doorstep" and when to use it?

The idiom "on one's doorstep" has its origins in the literal meaning of a doorstep, which is the entrance area of a building, typically just outside the front door. It is used to describe something that is conveniently located near a person's home or place of work, making it easily accessible or within a short distance.