Judge Judy is fake court, real judge but it’s more like a binding mediation and since it’s a tv show the costs are different if at all. That said, yes people sue over stupid shit, but in small amount we have courts called “small claims” courts that are ostensibly designed so people don’t need lawyers, but yes we are very litigious and petty. FWIW, I probably couldn’t afford my own law firm if I was in a big litigation. So big and small litigation is expensive and the system is broken.