This will vary from person to person. For example, your child only studied in the training class for one year, and then worked hard at home almost every day or every once in a while during this year. Of course, he may be able to compete in a year. On the other hand, even if children have attended classes for several years, they are not very attentive in each class, do not practice at home, and may not be able to participate in competitions. Talent and hard work will definitely surpass others!