Is that due to the touch screen or the interface? I’d be interested to see someone who normally has issues getting around on a touch screen trying assistive touch to see if the simplified UI with fewer controls helps.
For me, I thought the original iPhone was easier to navigate than any previous phone, or electronic device with buttons, I had ever used. While I like buttons and tactile controls, doing things in software allowed everything to be obvious. I don’t know anyone who fully used the contacts function on old phones, and speed dial required remembering which number was assigned to which person. With the iPhone the favorites had names on them, there was nothing to remember. Controls were also direct and purpose built, not abstractions assigned to unchanging buttons.
That said, over the years the OS has become more complex and harder to manage. The UI also got harder to use when skeuomorphism was dropped, imo. I’d like to think Assistive Touch addresses some, but not all, of this. I’ve actually thought about turning it on for myself just to simplify the experience, but I’m guessing I’d probably need to revert back to the full UI too often.