Because it would make them seem RIDICULOUS.
It's in the article, but you do have to click the link to read it, since it was snipped out. Here:
"The two brothers, ages 13 and 16, were riding in a red 1999 Mercury Mountaineer with their father when the traffic light turned green.
After the woman blew her horn to indicate the light change, the boys aimed at least one toy gun at her, police said."
Here's what I have to say about it. These boys were lucky this woman wasn't armed. Teenagers point a gun at me and they're likely to end up dead.
They're not going to get jail sentences over this, even though they could, legally. But the're going to get scared as crap over it.
You do not point a gun, toy or not, at someone like these boys did. Period. Never. It's a good way to end up dead.
I saw teens in the first line.