What creature walks on four legs in the morning, two legs at noon, and three legs in the evening?

Question

We turn it off in the morning, turn it on in the evening, it glows at night.
It's not connected to electricity.
It fits in the palm of your hand.
Five letters.
There is one in every house and we carry with us.
If it's thrown away, you have to buy it again.
What is it?

Answer 1

Man
four is crawling
two is walking
three is with a cane
morning, noon and evening refer to stages of life