Not all cultures share the same beliefs and values about what is normal, or socially acceptable, and never underestimate the power of culture shock -that disconnect between what you expect and what you experience when you visit another culture.
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It highly depends on what the shock is all about. You may learn things you never ever knew existed and it can be fascinating and good to know about. But other cultures do terrible things and it can shock you horribly how cruel or unreasonable or how “not right” certain things they do are. It can be good or bad depending on what you are seeing and experiencing.
Just like you already included in your question details, not all cultures share the same beliefs and values. Suggesting that a culture adjusts their beliefs or ways of life just because you feel it shouldn’t be the way they live sounds really absurd to me. Like, you go to a place and try to impose your own way of life from wherever you come from on them? That way of life which seem strange to you is what makes them unique. That is what makes up their culture, their tribe, their belief and value system. Beliefs don’t have to be universally accepted.