737 jock, when I started in the 737 I had 5500 hrs because that was required. When I became a captain my FO needed 5,000 hrs. so we didn't run a flight school as an airline, we really knew how to fly a B737 as captain on our first day as FO. Things are different now and some people think 300 hr pilots are totally qualified to fly an airliner with no supervision. You decide.