I do a lot of travel by public transport and train , especially frequenting Newcastle Station. The bane of my life are luggage trolleys that seem to have a life of their own and are great at blocking walways especially when you get a couple of peaple on "business trips" who insist on walking side by side , on once they're on the train seem to love wandering up and down before blocking somewhere with their luggage.
I understand that large suitcases do neccessitate a trolley or wheels or whatever , but amazingly I say a guy towing behind him a luggage rack , containing only his laptop!! Pardon me!! Could he not carry the damned thing like the rest of us . obviously not , but he made him look a total numpty!!
Anyway I think these are the pedestrian equivalent of caravans and should only be allowed to be used when all sensible people are in bed or elsewhere