Personally speaking,there are many differences between Chinese culture and Western culture.The customes of them are different because they have different kinds of cultures.
For example,most of the westerners believe in God上帝,because they are faithful Christians基督徒.While most of we Chinese are Buddhists 佛教徒,and there is no God in China.
Also,they use knives and forks when having dinner,but we use chopsticks whenm we have a meal.
Yes,there are many other differences between these two cultures,if you are interested in them,you can find more infomation about them.
Thank you.@1@