Nintendo 3DS Warning Label: No 3D for Children Under Six

NintendoEngadget:

[…] players are advised that 3D gameplay causes eye fatigue more quickly than 2D gaming and are told to take a break after 30 minutes of play […] Nintendo also says that children under six shouldn’t use the 3D mode at all, since their eyes are still developing, and that parents can use controls built into the 3DS to lock it into 2D mode for children.