Tribal skills and eccentricities are honed over many generations and likening it to Darwins genetic explorations, it creates fantastic human variety which we can only marvel at. Irish travellers are a case in point where they are now known as a distinct ethnic grouping because of their nomadic life over the centuries.
Faction fighting was a favourite hobby of family and area groupings in 18th / 19th CENTURY Ireland. HURLING semi replaced that competitive edge.