What? No, employers obviously shouldn't be able to force employees to socialize off the clock. No company should have a "stated culture" of requiring employees to drink or go to "strip clubs together". It is a gross violation of the boundaries between the employer and employee. If you want friends to enjoy bacchanalian revelries with, find those friends. Don't pressure your employees into it.

Moreso, are you going to force woman employees to attend these late night sessions? Will you expect muslim or mormon employees to drink? Or are you precommitting to not hiring any of them in the first place?