The prohibition against incest
People do not just live within a culture but use elements of that culture to inform their behavior and decision-making.
Nature is much more important to the development of culture than nurture.
All cultures are basically the same, due to genetic backgrounds.
Universal components of culture are vastly different from culture to culture.
Singing in the shower
Marrying a brother or sister
Choosing a different religion than that of your parents
Breaking the speed limit
Believing that all cultures and societies are equal
Believing that the culture you live is in slightly worse off than others
Believing that the culture you live in is slightly superior to that of others
Through social control such as discipline for breaking the rules.
By making sure everyone has exactly the same “material goods”.
By making sure only one language is spoken.
By creating an environment in which nonconformity is never allowed.
Here's an interesting quiz for you.