Some examples: Pretty much all of the USA, Canada and Europe are heavily influenced by Christianity. So, come to Japan where there's almost zero Christian influence.
Or take Singapore (Japan as well) both places that are super safe. I never felt unsafe in the USA until I lived in Japan and Singapore. Things USA culture just takes for granted (your car will get broken into if you leave anything showing. Dark alleys are to be avoided. Losing your wallet means never getting it back. ...) all things that aren't actually true they're just so internalized in the culture we don't recognize the aren't actually facts of the world but rather facts of current western culture.
I'm sure India and China also different magnitudes of difference than US regions.
I had my eureka moment when I took a job in urban MN after working on the reservation for 5 years (and growing up there before that). They announced a noon meeting and I went and they didn't serve lunch. Everyone brought a bag lunch (expect me). I was pretty ticked off and insulted[1]. I was mad the rest of the day. It took a call home and the "your not on the rez anymore" speech to open my eyes to what we hold as truths spawned from culture.
1) have a lunch meeting on a reservation on the upper great plains and not serve lunch at your peril - never mind not accepting a gift as you leave - federal rules and local traditions can conflict a bit