Why British wartime destroyers aged differently

Were Royal Navy wartime destroyers less future-proof than American Fletcher-class ships?

In part: Britain converted some hulls, but policy cuts and higher postwar design expectations reduced the perceived value of retaining the rest.

Conversions into anti-submarine frigates extended the usefulness of some British wartime destroyers. The Suez crisis and subsequent contraction reduced the destroyer force, so retention depended on policy as well as hull potential. The postwar Daring class embodied capabilities that made older designs less attractive to the Royal Navy. The US Navy continued to see ways of employing and adapting its wartime ships. The comparison therefore combines conversion opportunities with different expectations for the postwar fleet.