If you don’t understand the culture, you won’t understand the people. For example, if you celebrate Christmas, it shows part of a culture you belong to, although not all of it.

Yes, our big holidays are part of our culture. Culture is an important part of our lives because it defines us as one in society. Therefore, if you want to understand another person and get full respect back, you must also understand and respect their culture, even if you don’t include it.

The difference between culture and law
If culture is what shapes society, then the law is the rulebook that shows us how to act in that society. If we break the rules, society will show distaste, or even punish us.

If I meet a person outside of her culture
Most people adapt to the culture they actually live in (that is, respect the culture and in a sense gain respect for that society and be a part of it). They may not take all cultures to their hearts, for example, a person from the Middle East may never accept eating pork, but on the other hand, there is no punishment if you refuse to eat it.

Is there any bad culture
No, not really, but there are isms that are made up of people, that take out parts of the rules of society and put it on a higher level than it was thought to have. These isms usually consist of people who are fanatical about one or a few of the rules that build the culture. Often they have also taken that rule out of context and elevated them to something it was never mentioned to be. Ismer, or if you will, fanaticism, is not good for anyone, not even for those who fight for it as it diminishes the whole culture, including their own. Ismer exists in all countries and in all cultures.

Is ism a kind of protest against the ruling culture
Yes, it is, and usually,
it favors those who agree to it and suppresses those who disapprove or even kills them.

If you learn about the culture your partner is or likes to be a part of, you will also get more attention from that person and understand them better.