To answer the question why your phone’s touch ID/fingerprint is not set up, here is a list of things you can do:

1. Check your settings – Ensure your touch ID/fingerprint is enabled in your settings.
2. Clean your scanner – Make sure the home button is free of smudges/residue.
3. Try again – Once the scanner is cleaned, try re-enrolling your touch ID/fingerprint.
4. Restart your device – Restart your device or turn it off and on again to reload your settings.