Answer:
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
They can float and tickle, but their sound is rarely heard unless you're a pillow or bird. What are they?
What goes up but never comes down?
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
It is a part of us, and then replaced. It escapes out bodies, to a better place. The world becomes its sizeable home. Its passions unrestraint, the planet it roams.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?