I have never, in 12.5 years of marriage, almost 9 as a SAHM, made my DH a lunch to take to work. I am amazed at how common it is! He's a big boy! He can decide what he's going to eat and fix it himself! Sometimes DH takes leftovers or makes a sandwich, sometimes he buys frozen dinners, sometimes he meets his mom out for lunch. Whatever, it's on him!
Yeah, I wouldn't be surprised if people find the way we divvy things up to be a little odd. We have our own unique system. I'm responsible for all of the food prep, because he absolutely hates it, while it's my favorite household task. He does my most hated chore, and more than half of my second-most-hated one, so I actually feel like I got the good end of that bargain.