It should be that selective and hard that require people to give their all to be there.
Frankly that is better than having a wishy washy group of people who only in their position because affirmative action and gender quotas.
When I see an RAF aircraft I want to know that person flying it worked their
off to get there.
I want to respect the people doing it because they are the best of the best, not the best of the mediocre selected to meet a quota.