In Mark's Gospel, we have Jesus'
own teaching on children.
Mark 10:13-16
And people were bringing children to him that he might
touch them, but the disciples rebuked them. When
Jesus saw this he became indignant and said to them,
"Let the children come to me; do not prevent them,
for the kingdom of God belongs
to such as these." ... Then he
embraced them and blessed them,
placing his hands on them.