I grew up near Johnstown. I didn’t have much interaction with anyone from the eastern half of the state when I was growing up. I visited Philadelphia for the first time when I was 20. I joked with my friends how it was crazy that I’d been to 24 states by that time and I had never been to Philly. I didn’t notice the stark contrast that exists between those from eastern PA and those from western PA until my first year at Penn State. It’s more than just the Sheetz vs. Wawa feud. Pennsylvania is truly like two different states on a cultural level. To your point about the accents, many people also guessed that I was from the South when I was at school. Texas was the most common guess. Little did they know I grew up two hours away.