Was this a few years ago? This is no longer true.

The past 3 years, I have shared the service with 3 friends, one of which lives in a different state and we have had no issues. You just add them to your Google Account as “family” and they login their own devices.

There is some weirdness where YouTubeTV gives you 5 family shares, but only 3 total streams (outside your home’s WIFI) can be active at once. That’s why I limited the sharing to 3 total.

You should give it another try!