Answer:
I have fangs and enjoy piecing holes with a single bite.
If you lose me you may cause people around you to lose me too.
I am born in fear raised in truth and I come to my own in deed. When comes a time that I'm called forth I come to serve the cause of need.
Everyone has me and no one can lose me. What am I?
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
What is always coming but never arrives?