If you're in any major city you can almost certainly go 30 minutes in the opposite directions the tourists are going and be exposed to a different culture or find a quite oasis. No need to go to Asia.
Exactly. You can always choose to walk around, or take public transport, and find things at your own pace.
Or you can watch documentaries to learn about foreign cultures.
But anyone can do that. The true marks of a refined and worldly character are taking expensive trips to foreign resorts that only better people can afford.
According to whom? An authentic experience with locals is far more worldly in my book than dozens of nights spent in a 5-star hotel bubble of luxury.
I think you missed the sarcasm in your parent comment.