On a practical level, if you want to convince people to join you in community elsewhere, it’s generally more advisable to outline how many things will be the same, and only make their current less than optimal aspects change for the better.
For example, the average American has more than adequate access to food, shelter, clothing. People don’t move to gain these things within the US, why would they move to gain them outside the US?
What do people actually move for? Better jobs, better schools, an environment that they prefer (climate, social)…
Work- if you want people to move to the ocean, how do they work at their same job? How does it relate to the work experience they already have? The average person won’t want to start at an entry level when they are already advanced in their career. Some will, most won’t.
Play: Mostly, they’ll want what they already have: electronic entertainment, exercise space, social activities
Housing: the closer you can get it to what they’re used to, the more likely they’ll adopt it. Over time, it will evolve, but initially, you need to give them as close to what they’re used to as possible. Square rooms (have you ever tried to find furniture that fits into rounded corners?) upright, plumb walls, enough head room. You can probably get by with less space than they’re used to if you make it super efficient- especially with cool new toys/ideas/arrangements that appeal to geeks and enthusiasts. But it needs to be more room than a working mariner expects to spend short stints in.
Most people want to move to someplace better, not just to someplace new. So the dynamic aspect of mobility is interesting, but generally people don’t want to actually exercise it all that often, so you need to plan for providing a relatively stable community. People want their kids to have friends, develop relationships with their teachers, and have a social network that eases them into having jobs. Nobody wants to have to make ALL new friends and contacts every single day, month, or even year.
If you can just make the living space safe (enough), affordable (enough), and comfortable (enough) then the inherently mobile nature of the platform and how people adapt to that will take care of itself. You can’t really plan for evolution. It’s a semi-random, subtractive process.