Bikes in the street or sidewalk...ok, it might depend on the circumstances...but in the dark, unsupervised, and jabbering on cell phones? that's just asking for trouble and some smooshed kiddos.
As far as cell phones go...I'd like to announce that MY SON, who's 11 and in
6th grade is the LAST remaining kid on Earth without a cell phone!!
At least that's what I've been led to believe...