Why do you think so much emphasis is placed on child abuse and not elderly abuse?

There seems to be so many help lines, so many systems for assisting children suffering abuse. There are also therapies to aid them in recovery. Yet with elderly abuse in old age homes, there appears to be none of this. Most of the abuse is only ever caught on cameras placed by the family. How could one stop this type of abuse? Should all old age homes have for example cameras in the rooms. I just get this feeling that people overall care less about old people. Have you had any experience of this? How did you resolve it? It worries me a lot, even though my own parents are deceased. Since I know, out there some elderly people are being harmed by caregivers. Plus if you Google it or You Tube it, there are so many cases caught on camera by members of the family. Why do people care less about old people and more about children?