do you remember the fuss they made over that? all that happened was they allowed pubs to apply to open longer. contrary to the protestations that this would lead to scenes like the old Gin Lane picture, few people want to drink 24hrs so few pubs and bars actually bother with extended hours...
outside popular nightspots, probably most. they have to apply to extend hours. i recall a list of applications for extended opening in London, it was surprisingly few, with only a handful in some boroughs.