Try rebooting your iPhone. I'm on a 7 and I'm not having the same issue.
Not sure about the sheep thing... All I hear is that there are real iPhones and fake, copycat ones. They can't even put the camera in a different location. Talk about sheep.
On a more serious note, my Android loving friends have to replace their phones far, far more often than we do. As someone whose family needs 4 working phones, I've been impressed how long the Apples ones function (securely - which is the big issue here). DH and I have 7s than are over 2 years old, and DD and DM have our 6s that are well past 4 now and running strong.