At five years old, Carly is developing a split personality. If something isn't done to stop this, just imagine what she'll be like when she's older...
Sammi Joe's mother is now divorced because of how her husband was so upset over the insane cost of the pageants. How many other, non-recurring girls may have had to deal with that sort of thing?
The very idea that people like the worst of the Stage Moms actually exist
The possibility that mothers loading their daughters on Pixy Stix before the pageant will lead to drug habits in later life.
The fact that children at this age are incredibly impressionable and are witnessing adults - their own parents - using threats, tantrums, lies and many other underhanded methods to achieve very petty goals. In essence, these children are directly being taught that this kind of behavior is not only perfectly okay, it's also much more effective. This is especially worrying because none of this is staged (so to speak), so these children really are getting the message that if you want something, even a little bit, throw tantrums and death threats around like pillows until you get it. The fact that the show itself blatantly rewards this does not help at all.