Although she would be excluded from the kids closed programming due to age, there are still activities to do.
The kids clubs have scheduled open houses throughout the cruise in which ANYONE can go check out the club that is having it. We (2 adults) enjoy going to just see what they have, and to try out some of the simulators.
Outside the clubs, there are numerous family-friendly activities open to all ages, such as craft-making, towel folding class, trivia contests, etc. There are generally held in the various nightclub/bars that at night are adult-only but during the day are open to all.
There are also, of course, the character meet and greets, which again are open to anyone.
Then there are the various adult activities, like mixology classes [there is a fee for those], and a tour of the public areas of the ship that goes into various of the design elements [we found it quite fascinating and have done it more than once, learning something new each time].
And just hanging out and relaxing
SW