Seriously, the first two (Myst and Riven) were absolutely brilliant, and are still two of my favorite games of all time. The third was passable, but the fourth and fifth pretty much fell flat.

Mostly, I think it's because the characters got detailed well beyond the level they were developed for, resulting in stories and motivations that were flimsy or didn't make sense half of the time. Combined with a general decline in the quality of the puzzles, poor level design in the later ones, and the atrocious move to realtime graphics in the final one, this killed the games.

I'd like to see them rebooted with a return to the formula that made them a success in the first place: a return drop-dead gorgeous prerendered graphics, hard puzzles, intriguing levels, and a good sense of mystery. Ditch the overdone storyline and the attempts to add more interactivity to world, most of which just came off as hokey anyways.

Quite honestly, by the time they're about 14 there's nothing you can do to protect them any more. If you stop them from seeing porn on the internet, they'll manage to see it in magazines. If you don't want them to hear about the Bad Things out there, they'll just hear about them from other sources.

By the time they enter highschool, your children have already had their foundation laid. Hopefully you did a good job. From there on out it's a matter of exploring the world around them and developing high level understandings, and they cannot do that if you keep them from experiencing it. If you gave them the right foundation, they will experience it and make the right decisions.