You're forgetting, we drink our beer by the pint (and proper, Imperial pints at that). For many of my generation, it's not really a night out unless you've sunk twenty pints (plus the odd chaser), been 'glassed' (at least once) and woken the following morning in a dustbin with a kebab in your top pocket.
And that's just the officers...
I suppose, I've just grown partial to Dogfish Head's 120 Minute IPA at 18% and Kentucky Breakfast Stout at 12%. KBS is a fine meal replacement. Have a couple of those in the morning and you are good until dinner time.