I understand the logic about the strategic importance of drinking with coworkers but I have always felt it imposed some kind of obligation that I was somewhat uncomfortable about while I was single but much more so since I got married. The burden of the obligation for me is such that it outweighs any benefits I feel it could have in relation to my happiness. Those times when I have gone out with coworkers it has produced rigid conversations bound by convention and politics - not much different from what happens in the office. So I would say that piece of advice should be examined on a case-by-case basis.