Why is China's martial arts playing so little?

High kicking is still relatively rare in traditional martial arts. It is very important that the footwall is stable. Traditional martial arts doesn't play much, but its footwork is changeable enough to cope with actual combat. Generally speaking, the northern faction has more skills than the southern faction, and the foreign kung fu has more skills than the domestic kung fu. Personally, I think that the most leg skills are tan legs and poking feet. Besides, Jeet Kune Do has a high kick.