When I'm lost, still some will try. When common I'm shared by many. I can be a contracted reason why. A rebel may.......

Question

Fate has decided that you will only be pleased to meet me when you need me

May be thats why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting, if you try to reach me

How many of you can guess my name ?

Answer 1

Cause

Line 1: Lost cause
Line 2: Common cause
Line 3: 'cause I can mean because
Line 4: Rebel Without a Cause