I understand your opinion which is shared by a lot of people. Let's just step back and reflect. The Omicron variants, along with vaccines, have helped transition the original virus and resulting COVID disease to "cold-like" status for many people. Few hospitalizations. Far fewer deaths. But some "long COVID" symptoms do exist for a portion of the population. Unlike common cold. Very good news overall. And there are upcoming vaccine versions aimed at Omicron. So the world is progressing from the "no immunity" pandemic stage in 2020 to the mostly protected endemic stage in mid 2022. The CDC, WHO and other government health authorities are slowly changing from COVID panic mode to COVID long-term management mode. It takes time. There will still be surges and new variants. But all must be managed in a routine way for decades to come. Cruise ships will get there and improve in how they treat COVID on board. Right now they isolate and if we choose to cruise we know that before we pay and before we board. But it would not be wise to allow Covid-infected people even with minor symptoms to walk around the ship. And Irresponsible. But Why? Because Omicron is still one of the most highly infectious pathogens known. Would you allow people infected with measles (high infectivity too) to roam the ship? Not likely.