Okay kiddo, so let's say you and your friends have different traditions and customs that you follow at home. Maybe your friend's house has different types of food, music or holidays than what you're used to. These differences create what we call cultural boundaries.
A cultural boundary is like an invisible line that separates groups of people who have different cultural practices or beliefs. Just like how a wall keeps two rooms separate, cultural boundaries keep different cultures from fully mixing with each other. It's not always a bad thing though, as having different cultures helps us learn and understand other people's perspectives and ways of life.
For example, if you travel to a different country, you might notice how some things are done differently there than in your own country. This is because the people in that country have their own cultural traditions that they follow.
Cultural boundaries can be created by many things like language, religion, food, art, music, and even values. It helps to remember that even though we may have different experiences and ways of doing things, we can still learn and appreciate each other's cultural differences.