Why is a duke visiting commoner businesses and going around with a single escort if that is his attitude? At that rank, he should be able to hire great chefs, travel, probably has great venues built under orders of his family, etc. Him having a single escort is also really questionable, especially with that attitude. Yeah, some people are superhuman in this world, but at that rank, you have enemies. Other blood relations that want that rank for themselves and he doesn't seem the type to have too many real friends.