I get their email weekly, thank you, along with special alerts. I knew about SB 550, but that is kindergarten, not-preschool. It was defeated as your link notes. I had called my state senator about it, as well as a Senator in a neighboring district that shares the same zip code. I believe I also wrote a letter.
There have been other rumblings, non-ending, to lower the age of compulsory ed.
Rumblings are not bills. Both HSLDA and CHN are quite diligent, which is why we belong to both. There has been no such bill as you implied.
Lowering the "compulsory" age to 5 is considered "PRESCHOOL".
I have lived in California all my life and have never once seen kindergarten referred to as "pre-school," which, to my knowledge, has been classified as for children four and under.
It's not a big deal. You were simply mistaken, again.
Suit yourself, CO. As usual.