No. It is an example of a religion. The hippie movement would have been a subculture.
Yes, they can be, except in countries where they are the dominant ethnic group or religion. For example: you cannot call Catholics a subculture in Vatican City.
He was a Lutheran.
Lutheran Lutheran
Lutheran
A nun would be an example of the subculture related to Catholicism or religious communities.
Lutheran.
Evangelical Lutheran
Lutheran
Jesus
Lutheran or Catholicism
Lutheran
water