I suggest that living on a boat has great potential. Cruise ship NO....privately owned living aboard is actually very nice if you are self-sufficient and handy. From a money point it is cheaper (if you do it right.) I have experienced living on a boat and it was fantastic,I would have done it full time but was not in the position to do it...Seek out a small cabin cruiser and try it out...then go from there. It is a nice lifestyle.
We have a 40 ft sailboat....and just me? Yeah, I could live aboard easily. I love the marina, the water, and my neighbors. Marina people are a different breed...but apparently I fit right in. lol I spend as much time as I can aboard my boat, even just at the dock, sometimes 2 weeks at a time. I’d be perfectly happy there.