I went on a couple of ocean liners when I was a kid. Biggish cabins, hallways to walk around, open deck areas, etc. Loved it when I was a kid.
I hate planes and cannot stand to be confined in small spaces. I’ve actually researched travel by ship, there are freighters who take passengers.
I have the same problem with ships as with planes. If there’s a problem, you can’t walk away from the situation. Non-swimmer here. Now with a train, even if you’re in the boonies, you know there’s the option of walking somewhere. RV’s. Now that’s my idea of glorious.