I think the governor should say any business that discriminates against people based on medical history is not permitted to dock in Florida. Problem solved. Norwegian can to South Carolina or Cubs with their vaccine card checks.
I agree. As an alternative to prohibition on docking, require that the company maintain a record of all passengers (and crew) that they require their vaccine information for 7 years. Require that their IT be audited at the companies expense by third parties to ensure that the IT controls in place conform to industry best practices ...
etc. Allow them to ask the question but make it painfully expensive and procedurally difficult to comply.