I don't think so, but it's the equivalent of what some are suggesting. I don't have an issue with them giving a discount for being vaccinated, as long as they can do the same for anything else that leaves you less likely to get sick etc. just like we have for car insurance.
It is commonly done already. Currently I have 2 discounts on my health insurance:
1) non-tobacco user, 2) yearly physical (prior year).
I was thinking the same thing. It’s effectively the same, where you’re reducing the less-risky subsidizing the increased risk of riskier policyholders, since insurance is risk-pooling after all.
But it’s framed differently and IMHO much more reasonably: Rates are the same for everyone,
But you’re given discount for proving certain risk-mitigation.
A corollary (for how framing as a discount makes the same effective charge more palatable) is where retailers weren’t allowed to charge a premium for paying with credit cards, so instead offered a discount for other payment methods.