I noticed there are two points of view here.
Some feel that the parents inadvertently caused this to happen by entering their child in pageants, etc. Others feel that regardless of whether the child was dressed plainly this would or could have happened anyway.
You are both right, under different circumstances. The unfortunate thing about this case is that the girl was "out there" for the world to see - unlike the average toddler who stays pretty much home. This put her in the visible celebrity category where somebody could fantasize and stalk her. This is not to say that the same could not happen to the average child, it is just less likely. Even if she were not dressed in sexy outfits and wore a little pinafore, some pervert could be turned on just the same. Here you have Visibility. (Now I understand why the Muslims hide their women and girl children - they figure if nobody sees them, nobody will desire them - NOT that I am advocating this - I am just saying that in order to be desired something must be seen first).
The second thing is Access: These people were very social - whether going places or having people at their home. This brought Access into the picture. People knowing their business, when they weren't home, etc., etc. Whether or not the child was pretty or plain, if there is Access, the pervert will find a way.
LHG