Why Tribal destroyers operated in homogeneous flotillas

Did Tribal destroyers operate alone as leaders or travel together in groups?

They were built under a leader designation but organized into Tribal flotillas, reflecting the prewar preference for homogeneous destroyer units.

The ships were designated as destroyer leaders during development but entered service in Tribal flotillas. Prewar Royal Navy organisation generally tried to keep similar ships together so that speed, handling, weapons, and tactical expectations aligned. Wartime losses and demands made those formations less uniform, but class grouping remained the starting principle.