When I travellled with my brother and his wife I had my own room. I had a balcony and they had an 8n side. I was able to give them access to my room so they could use the balcony when I was not there. You may want to give at least one of your sons access to your room, I am thinking if you forget your medallion and need to get back in they can run down for you, same if you need a sweater or someth8ng from the cabin, they can stop and get it for you, or even just for safety reasons if you were to fall or need assistance. It didn’t take long to set up through customer service and they did not have any charging capabilities.