Well, speaking as someone who has flown with hundreds of new cadets over the last two decades, I can tell you that the level of ab-initio CRM training is very high, and despite the very steep learning curve, few cadets struggle to make the grade. Maturity isn't ignored and "life experience" is one of those abstracts often trotted out by those who have little else to offer. Perhaps some of that "life experience" could have been utilised learning better spelling and basic communication skills. The former is very important in application, and the latter is an integral ingredient in virtually all CRM profile training these days.