First disclaimer - I am a new parent so I don't have the full life experience that some of you do.I realize that your post is tongue-in-cheek, but it does hit on an interesting dilemma. Many of us go sailing to escape all this stuff. But for those who are parents of kids who might be easily bored and not so excited by sailing, we need to try to keep them wanting to come along, so some technology is helpful. Deciding where to draw the line is an interesting challenge.
Second opinion - I agree to keeping things interesting for them. I would argue that a lot of the conditioning starts with what they do on their shore leave time. I don't plan on letting my son become overly attached to his electronics. Having them and using them is 100% fine, but I want him to learn there are limits and times when they should be set aside. He will be required to have activities that are electronic free (sports, martial arts, etc) as well as leisure time that must be electronic free (model building, reading a physical book, etc).
So I would carry the same methodology to the boat.
My $0.02.