I find this whole thing re: child abuse being worse than elder abuse because of the effect being greater to be a dangerous argument. It's a slippery slope to say one type of person's suffering is worse than another's. Who gets to determine the value of a life...? That's a rhetorical question because in my opinion that's not something that's knowable. Meaning that an old person could have just as much if not more potential than a young person.
Feels like a debate over deciding which to value more, subjective or objective.