Re: I still want a fingerprint reader...
My mum had started using the fingerprint reader on her iPad, but after a little while she said it had stopped working, so she was ignoring it.
I was round recently to do the seasonal family IT checkup, and applying some updates meant iTunes was asking for my mum's fingerprint again. I asked her to give it a go while I was there, in case I could find a way to fix it, so she reached out, and vary carefully placed her finger on the picture of a fingerprint that shows up when TouchID needs you.
Once I'd explained that the finger print reader was actually in the home button it worked fine, but I don't think I can blame my mum for this one, that picture of a fingerprint does look exactly like an instruction to put your finger there.