I don't think any of those other places are requiring masks while exercising for the kids, are they?
Yeah, but that effectively ruins it for any of the free cities inside LA County. Kids is Pasadena and Burbank aren't going to have any one to play against. And the same as the $15 minimum wage, they'll feel enormous pressure to conform to the larger LA County, as usual.
For the Ventura border communities such as Simi it would be hard, for example, because they'll have effectively lost any nearby teams and will need to commute north to Venutra and Santa Barbara. Same for the OC, with commuting down to Newport. For the orgs like ENCL or Coast, hard to see how they could organize things with LA missing since that's such a big block.