Socialization is when a human infant begins to learn necessary skills as a functioning part in society, it's considered the most influential learning process. Humans need actual social experience to learn their culture and how to survive, unlike animals that get it through their instincts. Cultural variability is learned by actions, customs, and behaviours of societies. The most important expression culture is found within each individual. This can only happen after the individual has been socialized by family, friends, and other surrounding people. The reflect process is just continuing on and on. According to many scientists, socialization is the learning process throughout life and is one of the main influences on behaviour, beliefs and actions.
Carol Gilligan (Gender)
Carol Gilligan compared the moral development of boys and girls. She said boys rely on formal rules to know what if right or wrong while girls rely on care and responsibility when judging a situation that is about a personal relationship.
She also studied the effect that gender has on self-esteem. According to Gilligan, societies can be blamed that girls lose their self-esteem during adolescence because of female authority. Once through adolescence girls try to regain their self-esteem, because female authority has gotten less and now they have more male authorities.
Judith R. Harrison ( Peer Groups)
According to Harrison, a child's personality is determined by the people that one self is surrounded by while growing up. Parents behaviour does not effect the child's personality while maturing. 
Also according to Harrison it is beneficial to surround yourself not only with family, but also interact with lots of other people for it's beneficial in the future for success. Already existing genetic similarities between parents and their children, it is important to have other outer influences on one's character to further diversity of the character.
Pierre Bourdieu ( Family )
According to Sociologists Pierre Bourdieu, we inherit dispositions; such as ; manner, vocabulary and bodily behaviour from our family. This often determines the type of social interactions one feels comfortable with. Our family's position in society affects our life-chances, so there is never equality at birth. Parents in different social classes will raise their children differently, often teaching them skills that would be most useful in a job position similar to their own.