Hi Nicholas_B2
Thanks for your response.
I find it bizarre that my 8 year old son would need to have his OWN iPhone in order for me to be able to adjust "app limits" on games that are on his Apple Watch, but I suppose that's just the way it is.
What I can't comprehend is why -- during the initial setup of ScreenTime for his Apple Watch -- I am given the option to set "app limits"

Then, after the "app limits" are set... I can't adjust the "app limits". The icon simply isn't there.

Furthermore, I have discovered that even when I set an "app limit" during the INITIAL ScreenTime setup, these "app limits" don't even work.
It almost seems as though Apple ACCIDENTALLY left in the "app limit" set up screen for an Apple Watch that isn't paired with IT'S OWN iPhone.
Any light you can shed on this would be helpful.