I would recommend getting as much license as they say he’s earned. If he can get a third steam or motor you can still apply for oiler jobs if you want and ‘work up.’ It can be hard enough in this industry without purposefully crippling yourself. I’ve worked with lots of QMEDs with thirds licenses who didn’t want to sail as officers. They were great QMEDs and the companies doing the hiring look at it as getting more for their money.