Yes they have all developed their own ststems.
But you are actually proving my point about tgem being box ticking. The countries box tick for UEFA etc but have tgeir own way of doing tgese things.
Coaching education in Ireland and England for instance is absolutely different than it is in Sweden or Iceland for instance. While England holds trials for 6 year olds Sweden is dissolving academies.
Its what they teach in thise Icelandic courses that is unbelievably and fundamentally different to Ireland. In Iceland they create a soace for kids to learn. In irelabd they show they what to do. Its intrinsic vs. extrinsic.
You are out of your depth here.