A petition to stop this NPRM... Are you F&%#ing kidding me!!!! If your petition succeeds, that would be catastophic for this industry. Flying at a Part 121 airline needs to have professionals. At 250-1000 hours of flight experience you are still in the infancy of your experience level. Especially, if all you've done is make left turns (or right) in a traffic pattern. As a pilot at a 121 carrier I do not get paid to be a flight instructor, nor do I want to be. I expect that whoever is in the other seat, that they are competent and can perform their job without the other pilot having to babysit. I know that the regs. currently allow low time pilots to fly at the 121 level, that however, doesn't mean it's a good idea. Legal and safe have two different definitions!!!