I believe the purpost would be to get people to realize, those that choose not to even give it a thought, what is really happening to innocent babies, daily.
If a child saw it, it would serve for you to educate them at their level of understanding in a matter of fact way.
It ought to shock us adults, and frighten us and make us angry that this kind of slaughter of the innocents is going on around us.
It should make you so mad that you do something to stop it.
Then no child will ever have to see those photos, ever.
When I was a child, I saw a lot of awful things, but my parents never reacted in any way with a "OH MY GOSH, attitude, they always remained calm and just explained things to me, I never felt frightened after they reassured me.