Answer:
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What do people spend a lot of money on every year but never want to use it?
What time is spelled the same forwards and backwards?
A father's child, a mother's child, yet no one's son
What can be any size or shape and gets bigger the more you take from it?
Both old people and owls are said to be possessing this trait