I seriously don't understand people who own a touch ID equipped phone and don't use it. I am not being rude or anything I really do not understand it, it is a terrific feature that lets me have security but also the convenience to never have to swipe to unlock again. I get into my phone way faster than swiping and I have to re scan maybe 1 out of 20-25 times.
My fingertips are pretty well chewed up after 48 years.
I work construction, and have for years. Because of this, my prints are pretty messed up. Its just not reliable enough for me to use. It only works maybe 3/10 times. It was the same way on my 5S.