回複：I don't know CA standard. But have you talked to your ex?

加州的相關法律
http://www.leginfo.ca.gov/cgi-bin/displaycode?section=fam&group=03001-04000&file=3750-3753

the court shall require that health insurance coverage for a supported child shall be maintained by either or both parents if that insuranceis available at no cost or at a reasonable cost to the parent...If the court determines that the cost of health insurance
coverage is not reasonable, the court shall state its reasons on the
record.