Ορισμός και Σημασία του "[rub] shoulders with {sb}"

What is the origin of the idiom "rub shoulders with someone" and when to use it?

The idiom "rub shoulders with someone" originates from the idea that when people are in close proximity to each other, they might physically come into contact or brush against one another, particularly in crowded or social settings. Figuratively, this expression describes the act of associating or socializing with influential or prominent individuals, often suggesting that by doing so, one gains access to valuable connections or experiences within a particular social or professional circle.