Before you report your child to the class again. If you want your children to learn something, but they are not interested at all, you can try to expose them to it first. Look at the child's reaction.
Interest classes all have experience classes. Before giving lessons to children. You can take the children to see it first. Listen and see if the children are interested. Teach children the initiative.
Painting, music and dancing are common. First of all, you should make it clear whether the purpose of your class registration is to let your children learn something or to develop in this direction in the future. You don't have to ask your children to take interest classes as their studies.