Re: Mobile phone for the elderly.
My elderly Aunt had one of these
https://www.amazon.co.uk/Doro-Unlock.../dp/B075JGQ78B
She struggled with smartphones because her hands would sometimes shake and thus her finger would glide across the touch screen thus opening or activating stuff on the phone all the time. As she lived alone (uncle passed away years before her), she was always worried about being in a situation where she was not able to help herself and the phone having an 'assist' button which was assigned to her niece's phone, meant she was able to call her niece who lived close to her.
The phone allowed her to keep in touch with the family without it having to be complicated for her to do so and having the 'assist' button gave her piece of mind and confidence to go about her daily life knowing if something happened, she could press the assist button and her niece would be there for her. Plus the phone had the added bonus of being cheap