Is a hotdog a sandwich? Why or Why not?

The word hot dog means the sausage that you buy squeezed in a plastic package the same sausage heated and served in a long split roll. When it's served in the roll, it's also a sandwich ... Hence, a hot dog is a sandwich when served i roll.

TBH, it is. (EX: a hoagy can be a hot dog OR a sandwich. But IS a sandwich ...)