Several of my colleagues' children are learning Cambridge Children's English, all preschool children of the same age as LZ children. The way of children's English in Cambridge is unique, entertaining and interesting, and children are very interested in it.
Cambridge Children's English enrolls students several times a year. LZ can go to Huainan Children's Palace to check, just inside the Children's Palace, enrolling students all the year round.
Children should not encourage them to learn English, nor should they blindly pursue pronunciation, vocabulary and exam results. The most important thing in learning a language is to cultivate a sense of language. This is true whether it is our mother tongue or a foreign language.