There is also an assistive mode available that you can use on all iPhones to put a software "home button" always on screen. I know because one of my previous i

There is also an assistive mode available that you can use on all iPhones to put a software "home button" always on screen. I know because one of my previous iPod Touch devices had a broken physical home button so I used the assistive mode sofware button instead. This might also work for people who are too old to understand how to use the phone without the physical button.