Often called “featherbedding,” unions traditionally insist on inefficient work p

Often called “featherbedding,” unions traditionally insist on inefficient work practices that require the employment of more workers than necessary. They encourage their members to not work too hard nor too fast, to perform only within their strict craft jurisdiction, keep their improvement ideas to themselves, and otherwise resist labor-saving or productivity improvements.
Why would a union promote inefficient work practices? Support your position.
Candidly share your professional opinions of union-supported restrictive work practices.