It is no different for children. To teach responsible and caring behaviors, adults must first model caring behaviors with young children as they do with other adults. While modeling, focus on talking with children. This does not mean talking at children but discussing with them in an open-ended way. Work to create an air of learning and a common search for understanding, empathy, and appreciation.
Dialogue can be playful, serious, imaginative, or goal oriented.
It can also provide the opportunity to question why. This is the foundation for caring for others. Next, practice caring for others. Adults need to find ways to increase the capacity to care. Adults generally spend time telling children what to do or teaching facts.