There were bacterial and virus outbreaks before of cruise ships and covid-19 just makes it more risky to cruise.
People who don't cruise make uneducated comments like this one based on what gets reported in the media. I primarily sail Norwegian Cruise Line and can tell you I see cleaning of public areas going on consistently when I sail with Norwegian. Do you see cleaning going on 24/7 when you go to a casino, movie theatre, sporting event, or in a hotel? Those events expose you to more risk than I would get on a cruise ship.
In regards to Covid-19, the major outbreaks on cruise ships were limited to Carnival owned ships (Princess is owned by Carnival). Princess Cruises consistently scores low on U.S. Public Heath inspections and obviously Carnival needs to do something to fix that.
