It’s never to early to get in the habit of praise. You can’t start too young. That’s what Jesus said.
But when the chief priests and scribes saw the wonderful things that He did, and the children crying out in the temple and saying, “Hosanna to the Son of David!” they were indignant  and said to Him, “Do You hear what these are saying?” And Jesus said to them, “Yes. Have you never read, ‘OUT OF THE MOUTH OF BABES AND NURSING INFANTS YOU HAVE PERFECTED PRAISE’?” Matthew 21:15-16