Hi, all!
As it turns out, after speaking with an Apple Specialist, there is a fix to prevent Date and Time changes!
The solution is to set up Screen Time for the child on the parents' iPad (once the child is added to the family.)
The most important step is to ensure that Content & Privacy Restrictions is enabled for the childs' iPad. Once enabled, this will prevent the date and time from being changed on the childs' iPad (it grey's it out.)
I hope that this makes sense as it works now for our childs' iPad.
As an added bonus, there are many other features that can be disabled from being changed under Content & Privacy Restrictions as well. :)
Thank you, Apple Engineers! It's never pleasant to have to physically take away technology (I definitely prefer disabling access remotely, when necessary.) :)
Wishing everyone a happy, safe, and prosperous New Year!