My tinfoil hat theory is when Rosie quit, Tim asked Mike to come along so he can hang with Tim and help with J$ as needed. Then somehow Jess came back into the picture and Jenn said that she had to come with to help her.I still wonder if the original plan was to bring 2 nannies with them and when nanny Rose quit they decided to bring Mike along instead. Maybe he wasn't their first choice for a replacement maybe he was. Did he pay for his part of the trip? We can only speculate since I doubt the Trackers tell us.
Now, when Tim enters the room on Deck 2 with the porthole window, there is a Castaway club bag there, but not a dry bag or towel. The tote bag only would be a silver member gift. I think this room was originally booked with Rosie and Da Baby in it. Da Baby would be a Silver Castaway Club member. I saw Mike wearing a Silver lanyard onboard. If he had really never sailed before, he's wearing Da Baby's lanyard and I think this is his room. He took Rosie's place and is "rooming" with Da Baby on paper.
I'm really confused about how this all works out with the stateroom hosts when the rooms are so far away. Like, if Da Baby is registered in that room on Deck 2 and his parents are staying in the room on Deck 6....where is his lifevest? Because technically, his life vest is in the room on Deck 2. If he's sleeping on Deck 6 and there's an emergency---they don't have a baby life vest in that room. Same for J$. It's hard to play musical rooms when you are really far apart from each other on a cruise from an emergency standpoint, if that makes sense. If they had to evacuate--they'd be looking for Da Baby at muster station <whatever> but if he was sleeping in Deck 6 with Jenn, she would go to muster station <whatever>
Just me thinking out loud and hurting my brain trying to figure out the sleeping accomodations.