Where do i start Lack of development systems, small funding, very few good coaches, general disinterest in children to do sports. Majority of current children don't want to do sports, even for fun.. From the times i was at school (circa 2008-10 ) we couldn't find a pitch to play football and now it's 10 times less children that i see playing outside..
Plus, you know in the 20th century there were different times. Communism was 95% a negative thing, but when it came to sports, coaches, staff, from every sport went to every school in every town and picked children to train. It was an honor to be selected then. Now it's the free market.