Generally will fix whatever anti-piracy gimmicks they impliment. The same thing was done to Chrono Trigger on the DS where when you made it to the first time warp it would repeat that scene infinitely. As soon as somebody found out the trigger for what makes it repeat that they released the cheat codes to put onto your cart and you could play the game just fine.

I personally wouldn't "give" a four year old a computer. They should learn to use one at an early age as it helps with advancing into how to properly use it, but you wouldn't want to get them into a bad habit of never getting up and going places. Myself, I didn't actually get to use computers till I was around six because a friend had a 486 with DOS running on it. We used to play some games on it, and in most cases we fooled around with ZZT to try creating our own games. Relating to the post, I would install apps and games that allow creation and modifcation of what is on screen. Such as Roller Coaster Tycoon or something like Lego Creator(because sometimes REAL Legos are just too expensive.)