I feel like im in Cincinnati

I wouldn't know, I'm from London in the UK. If they ever set a game in Post-Great-War London then I expect to hear a few Scouse (Liverpool), Mancunian (Manchester), Brummie (Birmingham) accents in the game.

I guess in 2077 onwards American cities are as diverse as it is here.

Because the rest of the world needs to understand what people are saying. Do you really want your Sarcasm dialogue option replaced with "Say again, Pikey?"

South Boston is being taken over now so I guess Beth followed the natural progression of things that all Southies will be gone by the time of Fallout.

I run across generic NPCs with the accent all the time....named NPCs, not so much. Moe in Diamond City is about the only one I've noticed that sounds like he's from Boston.

Gentrification.

It wasn't until I read your post that I realized what this thread is about.

There are quite a few NPCs with the accent. Abernathy farm is one place I can think of off the top of my head.

It took me a minute to crack the code.