Crystal actually did, at least in the past, offer babysitting services in your room. We used it. Whether they still offer it, I don't know.
One night we left the group of kids (all under age 10) in the suite while the adults went to dinner. Learned the next day from our butler that the kids ordered plenty of room service sushi, were polite and respectful, and finished it all. They apparently also spilled a drink on the carpet, freaked out about it, and the butler helped them with the cleanup. 😆