Since the article is mainly about Mr. Fujino's education for children, why should he write about his appearance and clothes at the beginning?

At the beginning of the article, Mr. Fujino's appearance and dress are written mainly to leave a preliminary impression on readers and increase the realism and vividness of the article.

When writing biographies or similar articles, we usually describe the appearance, personality and experience of the characters. Describing Mr. Fujino's appearance and dress at the beginning can give readers a preliminary understanding of him and generate more interest in the following content.

In addition, appearance and clothes can also reflect a person's personality and lifestyle, which is helpful to understand Mr. Fujino. By describing his appearance and clothes, readers can better understand his living habits, educational thoughts and outlook on life.

In a word, the purpose of writing Mr. Fujino's appearance and dress at the beginning is to provide readers with more information about him and pave the way for the following content.