My father in law wants to avoid porters, lol
We have the 21" spinners, so it may fit.
FIL is being silly.

If it's a tip thing, just take charge of that. My cousin doesn't like to tip so I just do it. Couple bucks for her stuff is a good price to pay to keep everyone happy.
Those will fit.
I didn't realize there wasn't a limit! I retract the "Darn" comment
Fwiw the first reply to you said there are no limits except what you can carry.
So here's the thing. I get a little funny about having my stuff with me. If I could glue things to my body I'd be happy. It's like security blankets in the form of paperwork, kindle, knitting, camera, dresses, my shoes, etc. I do tend to pack those things in carryon (plus swimsuit coverup and sunscreen). So I have those with me the first day of a cruise.
I also have checked bags.
But there I am, "personal item" type bag, carryon spinner, trying to maneuver and see the shop, trying to get food, to find a place for my bags, and it's all super awkward.
Then I see people less burdened, and I'm jealous.
If you can unburden yourself it will feel better.
You won't be able to maneuver Cabanas to get food if you guys have a cruise worth of carryons with you.
If you consider luggage to be a permanent purchase, buy the GOOD stuff. The stuff that's in the high hundreds for a carryon. If you're not buying that, luggage is a temporary ownership situation. Eventually it will crack or lose a wheel. I haven't had anything happen to our bags from cruises. 7 so far with the same group of bags. But flights, jinkies. But then if I paid more than $40 at costco for those Ful bags, maybe I would have bags that lasted longer.
