Like it's a taboo thing? I didn't get that impression. There are definitely stereotypes of big-city vs country-side people for instance

I think just till relatively recently people didn't travel too far from their hometowns/villages. So there weren't strong stereotypes about people that were effectively far away

Identity is kind of two-tiered. There is a national identity which is strongly tied to history and literature and more "sophisticated" things - and then there is a local identity tied to dialect, food and historically stuff like local opera, music etc.

You're typically not in any way interacting with other local cultures other than the one in your vicinity (other than ethnic minorities - for which there are stereotypes a bit)

Anyway, I could be wrong. Would be curious to hear from someone who grew up in the environment