Why can't I set a fingerprint on my phone?

[Android Central Question]

So I have a samsung galaxy j1 6, and I didn't want to put a fingerprint on it. But I later changed my mind after I set it up. Then when i went to settings and checked lock screen, there was no fingerprint option.

 

[B. Diddy]

Welcome to Android Central! What's the exact model number for that phone?