Not true. There are plenty of people, like my mother, who are perfectly happy using a 5 or 6 year old phone. Does it still make calls, send texts and allow them to access some assortment of apps? Good enough. Is the battery shot? Totally, she's got it plugged into the wall, a battery or the car at least 50% of the day now. Doesn't care, it's good enough.

My mother has zero desire to upgrade. I told her in another year her phone may no longer be supported by the latest iOS, in which case she was getting a forced upgrade (by me). Because everyone's phone has becomes the center of their lives and security of that device is of the utmost importance.