Only buy if it's on clearance.
I bought the DS version several years ago when I was twelve, so I will admit that I am not quite the target audience. There aren't any issues in terms of being kid friendly, but there are several design flaws that make it unbearable for children. First of all, whenever you don't take care of an animal, it leaves the forest and the game plays this disproportionately sad little tune that makes it seem like the animal has died when in reality it usually just pops up in another area. This may seem nit-picky, but after about five repetitions even I started to find the tune frustrating, and kids with even the remotest sense of empathy will probably take it personally. Second of all, children older than six will likely be miffed at the condescending and watered down tone the narration takes.(When a mommy rabbit and a daddy rabbit love each other very much, they might decide to have a baby rabbit!!) My advice is, if you find it at the bottom of the Wal-mart bargain bin, go ahead and buy it. Your kid will probably play it for an hour or so and then forget about it or (in my case) pawn it off to a younger sibling. It is NOT worth the full price and please don't buy it as a Christmas or birthday present. Your kid will just be guilt-tripped into playing it for hour after agonizing hour.