Yeah, that picture is kid friendly at any age, afaiac. It isnt' a titillating, sexy picture. It brings up the concepts of prostitution, and homosexuality, two concepts that a parent is going to have to teach a kid about (in age-appropriate lessons) at some stage of their million-questions-a-day stage.
I don't think that reverance or respect for the dead needs the dead to be hidden from sight completely. It is the attitude that you bring, as a witness to a dead body, that matters, not the display and witnessing of a dead body, per se.