Answer:
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
What do people want the least on their hands?
What is lighter than what it is made of?
There is a creature of God whose body is hardΝΎ it does not wish to eat unless you strike its head.
What flares up and does a lot of good, and when it dies is just a piece of wood?
Those with eyes bigger than their stomach will definitely leave the restaurant with one of them. It is named after a house pet as well.