Just to put a different spin on this, I have recently joined BA, I am young enough to look forward to being able to have a command in my late 30's. The thing that we have to realise is everyone has different reasons, I was offered command with my previous airline, but decided to leave anyway. I really have no interest in command and mainly joined BA because of the range of aircraft that I will end up flying and for other good benefits like staff travel. So it is horses for courses, I am happy not having to think about command for the next 15ish years, others will not be so happy.