Every language has its own independent phonetic system. Chinese and English letters are similar in pronunciation and writing, just like the numbers 1 to 7 in mathematics correspond to do, re and mi in music ... so parents don't have to worry about their children's mistakes.
Neither Chinese Pinyin nor English words exist alone, but they should play a role in their own language environment. Children will naturally know how to read, use and distinguish them if they are placed in a language environment.
Children's English learning is not a simple letter learning, but a physical learning according to a certain language environment. For example, we take out a banana and teach our children to be alone. English learning is mainly the cultivation of interest. If children fall in love with English learning when they are young, will they be afraid of English when they grow up?
Parents and friends, don't worry that children's English learning will affect their mother tongue learning. Children have amazing ability to imitate and accept languages. Children aged 3 to 6 can learn five or six languages at the same time without language confusion. As long as teachers and parents cooperate effectively in children's learning, I believe children will communicate fluently and accurately in English.