Away fans didn't exist yet
When the first baseball game was broadcast over the radio on August 5, 1921, it was a revelation for fans of the Philadelphia Phillies, who were able to listen to the game in real-time despite the fact that it was across the state in Pittsburgh. Before then, fans either had to wait for the next day’s paper to come out or huddle around a telegraph machine in one of the earliest sports bars like Massey’s Billiard Hall in St. Louis, which historians credit as having been the first to cater to baseball fans (then known as “cranks”) with such Western Union-based updates. It wouldn’t be until the advent of affordable air travel that away fans would actually be able to make their way to other cities with their favorite teams. The bleachers were never the same again after that first flight touched down, as anyone who learned all their swear words at a baseball game can tell you.
Not even sports were immune from religious zealots
When the American Association was founded in 1882, it was for a simple reason. The National League, bowing to pressure from religious and prohibitionist groups, banned baseball on Sundays and stopped serving alcohol at games. The American Association, which offered both beer and whiskey, as well as baseball on the lord’s day, quickly gained popularity among working people who enjoyed both a drink and making use of the weekend. It's odd to imagine a Mets, Phillies or Dodgers game without suds, but prohibitionism was strong in the 19th century, when the entire country lived in crippling fear of Carrie Nation's hatchet. Modern baseball might be a little slower, but at least the religious nuts who love baseball for its supposed purity and the normal baseball fans who like to have fun -- and perhaps an adult beverage -- have learned to co-exist.