It’s quite possible and done often, retirees are using money to live on cruise ships and travel the world. Cruise ships often cost around the same per day as a retirement home, and there is no worry about maintenance, cleaning or fresh linen.
Food is well taken care of, and so is entertainment. When you want a change of scenery, swap ships and go see another part of the world.
You might even find a neat place to buy a nice little cottage and sun yourself everyday. Place like Costa Rica are very popular.
Often the family home is too big once the family has grown. As people move toward the permanent-holiday type of retirement companies have residential cruise ships available.
These have everything you would ever need to live comfortably. Here is one of the descriptions as found on residentialvessels.com:
Unique in design, with all of the comforts and conveniences of a sophisticated upscale retirement community or condo or hotel.
Health Care, pharmacy, groceries, entertainment, leisure activities, golf, restaurants, World class spas, 24 hour concierge, international banking, offshore bank and financial service, business services, and...