One's culture has everything to do with how a person turns out. It also lays down the foundation for a person's belief system and how a person conducts his or her life. Culture defines one's very essence. This determines what a person says or does and when it is said or done. There are rules to go by depending on the culture. For example, in a country where the culture represents freedom and equality, a person is more likely to reach for higher goals and more likely achieve them. By contrast, suppose the country were one of Middle Eastern origin. There is definitely inequality between the sexes. Each group has his or her own place in life as defined by that particular culture. With all that's been said here, culture will affect the personality of the child.
Here are a few points to consider:
1. All cultures are different and cultures have a profound influence on people. Culture shapes their thoughts, dream, logic and so on.
2. In light of point one, culture has a lot to do with the personality of a child. Culture educates a child in some of the basic aspects of life. What is acceptable, what is unacceptable, what is natural, what is unnatural, etc.
3. Culture also reprimands a child when he or she does not comply through various pressures and inducements.
4. I do not wish to imply that there are no other factors, such as the temperament of the child, but I want to emphasize the importance of culture.
For more reading on this topic, read Social Construction of Reality by Peter Berger and Thomas Luckman
Ok, First There are many definiitions, but the one you are looking for I think Would be."the quality in a person or society that arises from a concern for what is regarded as excellent in arts, letters, manners, scholarly pursuits, etc."(http://dictionary.reference.com/browse/culture)
That would effect on a child because If you look around the world there are many different culutures. For example, If you in a Mexican neighborhood you will see that they might dress different and speek different languages compared to a Polish neighborhood. So To answer your question culture effects a child by language, how they dress, and how they act. I hope this helps.