The speaker admits to a wish that hasn't come true: they would like to see their parents the way a small child might, as superheroes who are good, unbeatable, and always ready to save the day. Instead, the speaker sees them as ordinary people. The lowercase, offhand voice makes the confession sound tired and honest rather than dramatic.
The poem turns sharply in its last two lines. The parents are "civilians" who watch evil happen, gawk at it, and then go home, which suggests they stand by instead of stepping in. Then comes the sting: at home, they "act like villains themselves." The superhero language, playful at first, becomes a way of describing real hurt. The title, "Eyes of a Child," adds irony, since the speaker can no longer see with those eyes. The mood is bitter and disillusioned, with a quiet sadness underneath. The poem doesn't say exactly what the parents do, and that restraint makes it feel even more pointed.