We should always give thanks to God, says the Bible. And we should - because it's right to do so. Every pleasure is from him. Failing to give thanks causes us to lose sight of this. Thankfulness is an indispensable part of the road to spiritual strength and being a useful disciple in the world.
Lots of bloggers post about the deep and meaningful conversations they've had with their very small sprogs. That's great, and we should do more to listen and interact with even the smallest children as thinking beings, made in the image of God.
But on the other hand, we should worship God no less in our hearts when they think what they just learnt to do with a computer is absolutely hilarious...
10 INPUT "What is your name?" NAME$
20 PRINT NAME$ ;" is a fat hairy monster!"