Scottish men do not wear skirts. People of Scottish heritage wear kilts as a symbol of pride for the clan to which they belong. Kilts are part of the national dress of Scotland.
Scotland.com notes that kilts were worn by soldiers in the Scottish Highlands because they allowed freedom of movement in rough terrain. Pleated kilts helped to protect soldiers in combat. The wool that the kilts were made of kept them warm and dry in damp climates and could be used as blankets. After the defeat of Bonnie Prince Charlie, the English banned the wearing of kilts, viewing them as a sign of rebellion. Kilts remain a part of the national dress of Scotland. The various plaid patterns of kilts traditionally correspond to different Scottish clans.