I’ve always read posts from people who say you must take your passport ashore every day. This unfortunate thread should highlight once onboard if the cruise line don’t take your passport (which I prefer!) it’s passport to the safe until disembarking unless there is a legal requirement to have it with you ashore.
I accept some countries ask that you carry an official document and many guests just use the passports again we never do that - we will use our driving licenses whenever we can
I know the original passports were stolen before the guests got on board and once on board, perhaps the inconvenience is a little less, but still don’t carry passports ashore unless you absolutely have to.
I hope things are beginning to settle down for the poster and his parents, and the time they are able to enjoy a wonderful