I think as adults we need to decide for ourselves and our own situations what is safe or not safe and whether or not our choices are worth the risk.
Veronica
Yes, and studies repeatedly show it's a bad idea. I do it, though. I also listen (with my airdrives) when I lumber (my version of jogging). But, not when I ride unless it's on a bike trail.
My photoblog http://dragons-fly-peacefully.blogspot.com/
Bacchetta Giro (recumbent commuter)
Bacchetta Corsa (recumbent "fast" bike)
Greespeed X3 (recumbent "just for fun" trike)
Strada Velomobile
I will never buy another bike!