Hawaii is among the highest states for vaccination rates. But they are also the last US state with indoor mask mandates in place according to my AARP newsletter, in spite of their high vaccination rates.
#1 Vermont = 64.3% Fully Vaccinated
#13 Hawaii = 50.9% Fully Vaccinated
#18 California = 48.3% Fully Vaccinated
#50 Mississippi = 28.9% Fully Vaccinated
But there still is no requirement in Hawaii that private businesses require proof of vaccination for a person to do business with them. All patrons in Hawaii just have to wear a mask indoors.
I'm still confident that no state in the union has any sort of system in place that requires a customer to show proof of vaccination to gain entry to a business, or receive products or services from a private business. I just don't see that happening in the USA. Ever.
I think you'll find that many of us here are very sympathetic to the plight of small business owners over the past year. What some state governments (California in particular) put their small business owners through is nearly criminal, and the destroyed businesses and ruined livelihoods left behind in their bureaucratic wake is shameful.
Just ask Disneyland.
I'm not up to speed on what Hawaii's bureaucrats in Honolulu did to damage private business and small family firms across the islands, but it sounds like it was just as horrific as what happened here in California. Again, it's criminal.
That said, I know of no business in California that was shut down because of a specific Covid outbreak. California's contract tracing program is not nearly efficient enough or effective enough to track and trace such a thing to a specific business. There have certainly been groups of employees who all contracted Covid. But Sacramento then coming in and manditorily shutting down that business because of that? I don't know of any case of that happening in the Golden State in the past year.