The quickest way to get benefits out if you need it the first time is to withdraw the limit from the card at an issuing-bank ATM.
And, of course, the people.that are least employment-secure overlap significantly with the unbanked. Can't elect direct deposit if you don't have a bank in the first place.
The 30,000 foot view of a program often obscures important details; information on California UI I've seen also refers to how many choose direct deposit vs. choosing an ATM card, glossing over the details of the mechanics of how that works which is actually that everyone gets an ATM card, and some people, after getting it, redirect the funds to their bank, which only happens as direct deposit after the first time (and not really even then, IIRC, it still goes into the account tied to the card and then is immediately automatically transferred.)