To me, a real human is someone who will provide me an economic good or service without requiring that I show them a government/medical document that alleges I've received a coronavirus vaccine.
Vaccines are only effective for a period of time due to the changing nature of viruses. For example, the Japanese encephilitis vaccine only lasts 1-2 years and you are recommended to pay for expensive new shots if you travel in the region and are concerned about the virus.
If you allow the government and large institutions to say you can't receive a service if you don't take a laundry list of vaccines which have side effects, then you will seemingly allow them to require you do many other potentially dangerous things that are unrelated to stepping foot on a cruise ship.
How long does the Japanese encephalitis vaccination last?
The duration of protection is unknown. A booster dose may be given if the primary two-dose vaccination series was given one year or more previously and there is continued risk of exposure.
Vaccines are only effective for a period of time due to the changing nature of viruses. For example, the Japanese encephilitis vaccine only lasts 1-2 years and you are recommended to pay for expensive new shots if you travel in the region and are concerned about the virus.
If you allow the government and large institutions to say you can't receive a service if you don't take a laundry list of vaccines which have side effects, then you will seemingly allow them to require you do many other potentially dangerous things that are unrelated to stepping foot on a cruise ship.