Riddle: What goes up and never comes down?

Question

I am what goes up but never comes down. I am needed but hated. I am useful in more than one way. I somewhat hold the future. What am I?

Answer 1

smoke

Smoke always goes up and up and never comes down

Answer 2

Prayers.............................to goes up.........................

Answer 3

the answer is age

Answer 4

the answer may be SMOKE or AGE.

Answer 5

Its nothing but our age