That made me think of another space-design issue, this one involving airport bars and restaurants.
There is often no provision made for the fact that most patrons will have carry-on baggage. They try to make charming, intimate spaces with little cafe tables jammed close together. This would be fine if you were empty-handed, but you have to bull-moose your way through there with a rollaboard or shoulder bag knocking things over.
I was just in the IAH Term E Pappadeaux at dinnertime and fighting my way through the place to a kitchen-bar seat for one was very difficult with luggage.
Airport restaurants should have cubbies behind the hostess podium for bag storage, like airline lounges do.