I think you would be shocked if you worked for my company! We have company events once a month (last Friday of every month) where everyone takes the afternoon off for a company meeting, followed by a "fun event" and drinks paid for by the company. (Example - we rented out one floor of a bar last Friday.) We also have bi-annual parties - the last two the bar stayed open until 5am. (Allowed in the UK.)
This might just be a reflection of life in the UK versus the US, but drinking is encouraged. If you don't drink, there isn't a lot of pressure (there have been times when I haven't drank for one reason or another) but most people do. Sometimes people get "stupidly" drunk but no one drinks/drives (we live in London, so no one drives really).
This was one of the biggest differences I experienced when moving to the UK - the very different attitude to alcohol. It is considered a big part of company culture, at least where I work.