There are many reasons. In the final analysis, it is still a youth training problem. Football has a small population and lacks high-level coaches and a unified youth training system.
Most parents don't want their children to play football, and some are afraid of getting hurt. Some people are afraid that they can't kick out, while others have no financial ability. The most important thing is that the domestic football environment is poor, with negative news every year, and the slogan of the Football Association is very loud, with new goals every year. Then, people lose confidence in the work of the next leader, and it becomes a vicious circle over time.
It is still necessary to change from the foundation and strictly investigate some informal football training institutions that cheat money under the guise of youth training. I have read some reports about finding a foreigner who doesn't know football at all and then dare to teach. How good can this teaching be? There are too many such news. If people want to have a minimum of confidence, they must vigorously crack down on such fake training institutions.
Unify to find a style feature, and then unify the style from bottom to top, let the coach go out to study first, then invite the good coach in, and send the good young seeds abroad as soon as possible.
Reduce the financial pressure of learning football. If foreign aid money is put into youth training, at least more good players can be trained.
Of course, this is only part of the problem. No one knows what will happen in the future. If nothing can change, then continue to be a Buddhist fan. Tired of scolding, that's it!