Well one of those is a fundamental ADA need, similarly to bulkheads being blocked out. Whether or not you can hold it is great and all. The rest I can agree with, and demanding regulation brings us full circle on airlines and increases prices. In this day of on demand everything, we can essentially get/bring anything we need on a plane, including extra legroom, which you can pay for on demand, Otherwise, expect the back of the plane to cost more than buying up does if you regulate it.