I have an elderly relative with dementia who is unable to use a smartphone but the local grocery chains provide discounts for their weekly sales through smartph

I have an elderly relative with dementia who is unable to use a smartphone but the local grocery chains provide discounts for their weekly sales through smartphone based digital coupons. The open irritation and verbal abuse they get from cashiers who have to go through their alternate manual process for entering those digital coupon discounts is depressing. They aren't alone either, e.g. https://www.wcpo.com/money/consumer/dont-waste-your-money/seniors-and-tech-challenged-struggle-to-use-digital-coupons https://www.wcpo.com/money/consumer/dont-waste-your-money/se...