OP is nearly a year old.
No such thing as 'the tactical world'. 'Tactical' is a marketing term only.
The problem with YouTube is the same as Wikipedia. Anybody with internet access can post anything they like on both. And you cannot learn proper firearms handling from a video.
Mind you, PAL instructors aren't all qualified to teach either. There are many "trainers" without actual experience teaching people the PAL/RPAL courses too.