Funnily enough, it’s usually fairly upscale folks who do “events” at White Castle. It’s the irony that they’re going for, and WC is happy to oblige as they make decent money. When I was a teenager, I was visiting relatives in the midwest, and we had gone to a WC for a snack. While there, my aunt heard that a bride and groom were coming in for a “celebration” like that, and stayed to watch. I went through the entire menu while we waited, but they did eventually show up in a limo, wearing formalwear, and had brought champagne along with them.