It's about minimizing RCCL's risk while maximizing their profit. They might get a few more cases to handle with the new testing scheme, but they'll probably get more paying customers, too. The safety of their guests is apparently not the priority. I don't mean to single out RCCL with that statement, either. The fact that every cruise line is using antigen tests 2-3 days before sailing shows that the other lines are also prioritizing convenience and profits over safety. It'll be up to the customers to decide whether that's OK.