Just found this:
But
DCL also pays attention to the Disney Dream's activities and entertainment for adults. Palo and Remy are two exclusive restaurants that cater to adult guests, complementing the ships variety of spa services, lounges, and nighttime entertainment designed for guests ages 18 years and up.
And this:
Once you turn 18, DCL considers you an adult and allows access to every area on the ship. Of course, you must still be 21 to purchase alcohol.
and on that same page:
In addition to the other adult-exclusive activities that 18-to 22-year-olds are welcome to, DCL holds "College Club" activities throughout the cruise starting at either 10 or 10:30 p.m. on the first night of your cruise. The College Club is a casual get-together to help everyone meet and find people their age to hang out with. Times for the College Club can be found in your Personal Navigator which is distributed daily. I have found that attending the College Club social on the first night of the cruise is a great way to enhance the cruise experience and keep from being bored. On my past several cruises, we have all become really close, and many of us still keep in touch. The College Club Social is held in Diversions on the Magic and the Outlook Cafe on the Wonder. Throughout the cruise, there are a mix of other College Club activities, such as lunches in Parrot Cay on sea days, gatherings in Diversions, and meets at the Cove Cafe for smoothies and coffee. On the Magic, College Club Socials are timed so that everyone can meet up in Diversions, and then head over to the night's events in Rockin' Bar D together.
I'm really hoping that Sean finds the college age group.
I mean I'd really like to show him Palo for brunch and the adult beach and perhaps a couple of adult comedy shows like that scavenger hunt, but
Bob and I do want our alone time too.

I know Bob is already like this


about having Sean tagging along with us all cruise.
Although, he's never done it before, the last few cruises that Sean went on with me, he found some girl to hang out with the entire week and we only saw him for dinner.
So here's hoping again!