Yes... of course there is no reason why you cannot ask why things are so...
But in the long run, one of the realities of ships is that you can't just call a plumber when toilets go down. You have plumbers onboard, but if you need parts you can't just get UPS to send them to your ship in the middle of the Atlantic ocean.
It is hard enough to maintain a ship without all of the logistic challenges of being out at sea. The more you know about them the more you accept this fact.
As for the eggs - My wife regularly orders "over medium" - I had never heard of it, but it makes sense if you think about it. They make great fresh eggs on ships, I would urged him to be more adventurous.