Why is the inheritance of traditional Wushu so poor?

I think China Wushu pays attention to martial arts, so it will be inspected for a long time if it is passed down. Moreover, many old masters were stubborn in the past, and many martial arts were lost. What's more, the so-called kung fu is hard work, which takes time and continuous efforts. Nowadays, many people feel that hard work is too tiring. China needs a lot of things to practice kung fu well. As the old saying goes, practicing martial arts is troublesome.