EC 3-4.

A layman who seeks legal services often is not in a position to judge whether he will receive proper professional attention. The entrustment of a legal matter may well involve the confidences, the reputation, the property, the freedom, or even the life of the client. Proper protection of members of the public demands that no person be permitted to act in the confidential and demanding capacity of a lawyer unless he is subject to the regulations of the legal profession.