Why do electricians usually learn through an apprenticeship?
It is a regular part of getting an associate's degree.
It is necessary for job placement.
It allows them to obtain a license.
It is the only way to join the union.

subculture

Explanation:

The community is an example of subculture.

A subculture is a group of people within a culture that differentiates itself from the parent culture to which it belongs, often maintaining some of its founding principles. Subcultures develop their own norms and values regarding cultural, political and sexual matters.

subcultures might include hippies, Goths, fans of hip hop or heavy metal and even bikers.