The Family
Family influences almost all humans the most. Family is where young humans learn norms, values boundaries and faith from. Teaching children can be intended and unintended. When a child sees bad behavior he's going to do it, not realizing that it is bad. When a child does something bad kids are put in time out or get a toy taken away and that punishment is associated with the bad act. Family is where you get your values, mannerisms, and speech.