This is a thank-you letter, but I think it is a starting point for teachers to encourage children. As a child who just went to kindergarten, after all, it is different from being at home. Isn't it an improvement for parents to adapt to a collective life and integrate into society? Didn't his parents just raise him and teach him to be independent, survive and adapt to society slowly? When children adapt to learning, they will bring home new things they accept and bring great joy to their families. It's fun to look after children and learn something with other children. I think parents' joy is from the heart. The letter doesn't need to be too long, with a little encouragement, and you can also mention something that he shows outstanding at home every day, even a little. Hehe, this is my feeling, because children have to write parents' messages at the end of each semester in primary school.