

Canada, they allow 2 semi trailers hooked together, a “B-train”, B trains make much more sense, unlike A trains and your picture, they can be backed up easily (with a skilled operator) around a corner. I could manage backing up both those conveyances in your picture, but the bottom one would come fairly easy, the top one would take a fair bit of practise.
Not really the poinnt bud, was talking bout the hitch