Welcome to planDisney Charles!
It sounds like you have a nice cruise planned with your son's family! A cruise is a perfect "multi-generational" vacation with onboard fun for guests of all ages.
Concierge services and lounges are for the exclusive use by those guests booked in the
Concierge category. You will still be able to have your dining together and enjoy most of the ship's activities together, they will just not be able to be included with concierge exclusive locations and activities.
To book an
accessible room, be sure to check the box for "Accessible Room" when on the "Confirm Travel Party" page. This will show you accessible rooms in all categories. Browse through the locations and options to see what will work for you.
Cruise deposits are refundable, per the cancelation rules. Read through the
cancelation details before booking so you are familiar with the policies. Hopefully you will be able to sail as planned with no need to cancel!
While sailing on your Disney Cruise, you will find the
Disney Cruise Line Navigator app to be super helpful. This will be your "go to" for all activities, dining options, and more. If you prefer a paper copy of the daily happenings around the ship, stop by Guest Services on Deck 3.
Wishing you the happiest of cruises on a Disney Cruise with Captain Mickey and his crew!
Cathy