This is obviously inappropriate. The child is too young to eat leftovers face to face, which is likely to cause irreparable harm to her fragile mind. This is not an alarmist. The best way is to talk to her with reason and emotion.

1: Eating garbage leftovers, children will learn from others when they grow up. Children have a strong ability to imitate. You take the initiative to eat garbage leftovers and advocate saving. Finally, she saw leftovers that others couldn't eat in the school cafeteria. Is it the same? So people will think you are crazy.

2. There are many ways of education. I can understand that many children are disobedient now. After all, I came from that stage, so different education methods can often influence her future career prospects. If you don't eat, you can slowly reason with her, reason and be emotional.

3. Show her relevant educational videos, and she will change a lot. Now there are many videos about educating children and so on, and they are in the form of animation. Originally, children were interested in this. Just for her sake, I believe I can understand your pain in the near future.

Parents should set an example and take the lead. In addition to persuading children to be frugal, parents should also take a good lead. This can't be done at all, and the child can't change. Do it yourself first, and the child will gradually get rid of the bad habits.