I'd like to take a moment to applaud the Pacific Legal Foundation and the legislature and governor of Missouri for putting an end to that state's certificate of necessity law for moving companies. The law gave established moving companies "the privilege of basically vetoing" a newcomer's application for a license, PLF says.
In a society based on rights, there's only one proof of the necessity of a business: that it serves people's needs enough for them to keep it around by paying for its products and services.