A work-around-ish is to quickly scroll to the bottom and hit next to jump to the second page and start browsing from there. Everytime you hit “next” after that, you’ll see some repetition from where the new posts loaded and pushed content down, but it’s not a live update like on the first page.
But yeah, they really need to push the update out that fixes this problem.
The child in that case is not the user (or at least not the owner). The user is the parent who configures the phone as they choose and loans it to the child. It’s no different than Apple allowing a business to configure a MacBook as they choose, including tools to monitor its usage, and then offering that computer to one of their employees. The owner of the device gets to choose the privacy settings, not necessarily the end user.