Whereas US naval vessels are 'dry' (I assume that's still the case?), the RN allows its sailors to have limited amounts of alcohol on board, so there is less 'urgency' at getting drunk as skunks when ashore,I would imagine.
As for punishing the offenders, no doubt an extra turn in the barrel after kissing the gunner's daughter will suffice? Not quite a keel-hauling offence though.