Social interaction in the townsquare was important for burghers.
Social interactions in the townsquare were important for burghers.
I'd like to know whether interaction should be used in the singular or plural form. My guess is that both uses are ok and it's a matter of personal style and emphasis (that is, the singular form already implies that there may be a plurality of social contacts, but, using the plural form emphasizes that plurality). But maybe I am wrong and another rule applies. I have found a thread on this but I am not sure that its answer is correct When do we use "Interactions" (plural of Interaction)?