Hello Sbcaddy,
Welcome to the Apple Support Community!
Starting in iOS 14 you are now able to setup a cellular Apple Watch for Family members who do not have a cell phone. All that is required for setup a Cellular Apple Watch Series 4 or Higher. You can set it up with your carrier or use another carrier for Family setup. All of this from your iPhone. In this post I’ll include an article about this and a helpful Youtube video from Apple Support which can help you setup Family Setup.
Best of Luck
Cube2012
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Setup Family Setup
Set up an Apple Watch for a family member - Apple Support
Family Setup Youtube -Apple Support
https://www.youtube.com/watch?v=q6uMQeUx0l8