"child" in some definition is pre-puberty age, the law against possible sex crimes though, covers, in many areas, all youth below 18 years of age. If you covered the faces of "perfect" specimen -(women), - in many pictures of the media, that image matches often the "sweet sixteen" body. It is now illegal to photoshop maturer faces to 12 year old bodies, as was the custom, in some jurisdiction. so:
keep the the call for action, to where it counts, in the prepuberty range. after all,
many sisters dream of having that 15 year old body again, with the wiles to used it, of a 150 old lady, -- and so do the males.