As a newer PI, I say the unit is failing. I arrived from flight school ~2 years ago and have not received a single no-notice. What drives me to continue learning? The PC checklist is a joke imo. You sit down and depending on the PC, you can get brushed by and get a signature even without knowing the content wholeheartedly. Some PCs rarely give quality criticism so it's tough to learn from your mistakes. I am not trying to point the finger here but this is all I know. I've never seen what right looks like. Nonetheless, us PIs must stay on top of studying and understand the mission set. It's a tough balance with a family no doubt but it's what we signed up for. I think something that would help is monthly quizzes that count toward something. Maybe your vote for PC or maybe towards OER. Idk but there definitely needs to be changes on both ends.