I see it a different way. Parents reach a period in life where their kids strike out on their own and want little to do with them beyond a safety net. That’s normal and natural and the parents move onto a new phase too. In fact they might just not be that into you anymore. It’s ok if visits upset their routine and holidays are somewhat irritating. Same for being not overly enthusiastic about taking on care giving roles for grandkids. They’re still individuals and it’s not like old age causes someone to lose their inner world. They’ve seen a lot and not as much is novel likely. They’re facing loss, mortality and decline. If they feel compelled to scroll let em scroll. I’m so glad assistive technologies and a11y will be there when I’m decrepit so I can have something more stimulating than TV. Maybe ask grandma to play some Lethal Enforcers the next time you visit you’d be surprised — mine did.