He shot the 7-year-old's adult mentor too (an off-duty law enforcement officer) (everyone's expected to survive). The reports say the 3-year-old fired a 12-gauge semi-automatic shotgun (and none that I saw indicated his mentor was helping him hold and aim it).
From the official site:
It's easier than ever to introduce someone new to hunting in Wisconsin
...
The Wisconsin DNR hunter education curriculum is written at a sixth-grade level (11-12-year-old); parents ultimately decide whether their child is capable of successfully meeting the requirements of a Wisconsin hunter education course.
