1. Six months from now, Apple will announce a new ad network, which will be whitelisted for Kids apps.
2. Twelve months from now, they'll ban all non-Apple ad networks in kids apps. If they want to be subtle about it, I'm sure they'll find some inappropriate ad to use as a pretext.
3. 18 months from now, they'll open their ad network to all apps.
4. 24 months from now, they'll ban non-Apple ad networks in all apps, and swim in money as they've found another way to squeeze more money out of their captive userbase.
And every step of the way, HN will cheer as Apple continues to brutally exploit their ownership of the platform.