My sense is that Apple is in less of a position to use child data for exploitative purposes, because their aim is to sell hardware. It bestows the sense that Apple isn’t trying to exploit children for data, at least beyond selling them more hardware. In facebook’s case, selling the data is their entire business model, and that should make us nervous.
The forty years Apple has been pitching to children means that a toddler's great-grand-parents may have bought an Apple II for the toddler's grand parents. Apple's marketing at children has been going on so long it is background noise. The brand's halo has been carefully curated by associating with Disney and product placement in movies. The final scene of The Book Thief shows that Apple will market over top of the Holocaust.