Well, I was taking the assumption that since this was 53 years later, maybe some people wouldn't be taught this as it may not have been necessary or thought of, compared to other survival skills.
But if everybody feels that without the internet and schooling that the direction of the sun and the directions related would still be obvious and easily known, I won't argue. I can listen to democracy.
Just like Marshall said, his character was never taught as he never needed it. Some people, depending, might know these things. Just use your best judgement