At what point does voluntary membership in an elite end and elitism begin?

One change is to make membership voluntary in the insurance purchasing pools known as alliances.

The first of the Rochdale Principles states that co-operative societies must have an open and voluntary membership.

The majority of students supported voluntary membership and this was enacted.

Since 1930 the Society has encouraged philatelic study through voluntary membership in specialized committees.

It has a voluntary membership which stands at over 26,000.

It only includes the voluntary self-reported membership of religious bodies with 750,000 or more.

Nearly 2000 Mississippi physicians make up the voluntary membership.

It is funded through voluntary membership, as well as various services, activities, and sponsorship programs.

It is regrettable, however, that the Council did not agree to compulsory membership, but simply adopted the system of voluntary membership.