2 Year Old Straps On Helmet, Rides ATV into Ditch

Petoskey News-Review – News – Toddler injured on ATV recovering in Flint
…Sutton Majeske, of Port Huron, was riding alone on an ATV on private property in Wilson Township when he lost control and toppled over an embankment. Majeske was wearing a helmet at the time of the crash.
…it was determined that the boy had suffered a severely broken lower jaw and had sustained lacerations to his face. He was then airlifted in critical condition to the Hurley Medical Center in Flint.
Ok, a few things really stand out about this, especially in the comments. Never mind the JU-esque manner of one commenter named "Realistic Citizen, who correctly (al-beit tastelessly) makes the assertion that, as a 2 year old is somewhat used to eating "mush" as a baby, the transition should be easy. There were actually a few cogent, realistic comments along with the normal "OMG those parents shouldn't let their kids ride alone" comments that used a few colorful words to better make their point.
Another commenter, "what", what? Yeah, "what", asks if anyone has considered that the 2 year old put on the helmet himself and went for a ride?
I know my kids both love riding, and I try to make sure they don't have the opportunity to take off on their own. (Unless it's the electric quads)
Something about that "severely" broken jaw isn't right either. My 2 year old, err, now 3 year old, has a huge head. I still wouldn't think of putting a real helmet on him. He may have been wearing a Bicycle helmet or something, or maybe it wasn't strapped on. My kids won't get on a (gas) quad alone without being able to wear a full face helmet.