All parents expect our children to grow up and mature into good adults. It takes effort on the parent's part to help the child do just that. The child has to want to grow up and mature as well. We feed our newborn babies milk as their bodies we start giving them solid foods.
Our Heavenly Father wants His children to grow and mature in a fruitful relationship. He wants all of His believers to get off milk and eat solid food spiritually. Digging deeper into His Words, we call the Bible. Deeper and more meaningful prayer life too.