Would trial by combat be considered a legal option for settling a dispute in a city like Neverwinter or would that be considered barbaric? It would be considered barbaric.
I know, as in Realmsplay, Uthgardt barbarians visiting the city have tried to do just that. :} And lawkeepers were called. In one case, too late.
If the parties involved agree to a duel, they customarily QUIETLY go out into the forest.#Realmslore

— Ed Greenwood (@TheEdVerse) January 30, 2021