Other important thing are regulations, which require learn amount of hours on certified vehicle with instructor. Some countries accept extern (self-learn and j

Other important thing are regulations, which require learn amount of hours on certified vehicle with instructor. Some countries accept extern (self-learn and just pass in certified), other not. And regulations even more conservative than instructors. I know, some time ago, long before war, in Russia people asked, why not use simulator to learn small plane flight. It takes few years, to gather group of learners with flight sim exp. Once this happen. Statistic said, typically in flight school, only 50% of students could fly from first try on real plane (others just fear, or get confused). Sim group fly 100%, only made small non-critical mistakes.