“My parents are unable to stay home due to loss of jobs” did your parents lose their jobs? A bit confused about that statement.

Are you currently employed and would be quitting your job to care for your siblings?

As for your question i don’t think you can if you aren’t the parent or guardian. It appears that you would only be paid if the relative you are caring for is sick. On The other hand your parent(s) would be able to quit and collect unemployment so they can care for their child(ren).

This is what i pulled from the California EDD website

“Caregiving

If you’re unable to work because you are caring for an ill or quarantined family member with COVID-19 (certified by a medical professional), you can file a Paid Family Leave (PFL) claim. PFL provides up to six weeks of benefit payments to eligible workers who have a full or partial loss of wages because they need time off work to care for a seriously ill family member or to bond with a new child. Benefit amounts are approximately 60-70 percent of wages (depending on income) and range from $50-$1,300 a week. If you are eligible, the EDD processes and issues payments within a few weeks of receiving a claim.

Telehealth and virtual appointments are acceptable for a physical examination, but medical certifications are still required.

School Closures

If your child’s school is closed, and you have to miss work to be there for them, you may be eligible for Unemployment Insurance benefits. Eligibility considerations include if you have no other care options and if you are unable to continue working your normal hours remotely. File an Unemployment Insurance claim and our EDD representatives will decide if you are eligible.”