Answer:
Cuffed hems add weight and importance to the gentleman’s trousers. Their function during movement is to cover the sock and continue the trouser’s crease. Cuffs create a dressier look, so can be reserved for suit pants, except tuxedos.

More casual fabrics, such as twills, poplins, or corduroys can be worn without cuffs. These fabrics do not demand a heavier hem, and are easily weighed down by unnecessary fabric. Clothing that is dress casual or business casual can be worn without cuffs.