Back when the first ships failed causing the death of all the occupants , human lives were just not worth much , so humans kept building ships.
And also mass media wasn't there yet, so there could be no way to massively distribute content of a ship sinking and all the bodies floating around.
Same thing with planes, had we discovered flight in the Middle Ages we would have loaded 100+ people in wooden planes as fast as humanely possible because of the enthusiasm for the new technology would have vastly surpassed the fear of being harmed by it.
Back when the first ships failed causing the death of all the occupants , human lives were just not worth much , so humans kept building ships.
And also mass media wasn't there yet, so there could be no way to massively distribute content of a ship sinking and all the bodies floating around.
Same thing with planes, had we discovered flight in the Middle Ages we would have loaded 100+ people in wooden planes as fast as humanely possible because of the enthusiasm for the new technology would have vastly surpassed the fear of being harmed by it.