In Back To The Future III, a bartender taunts Marty for trying to order water, telling him that he'd be better off sticking his head in a trough and that "'round here, men drink whiskey." Was it uncommon for people to just drink water back then? How did people stay hydrated?

by That_one_guy_7609
NY17blue

This answer by u/sunagainstgold might be helpful

https://www.reddit.com/r/AskHistorians/comments/7b8jea/is_it_true_most_people_in_medieval_europe_drank/dpgj9wp?utm_medium=android_app&utm_source=share&context=3

But as a die hard fan of the movie I can tell you the bartender is referring to what people order in the saloon not what people generally drink in 1885 Hill Valley.