Excellent "Irony Alert" posting Matadon!
Maybe parents, too preoccupied and/or burnt out with their daily work responsibilities, feel more *comfortable* having their kids sitting in front of a tv versus zipping around the streets on a bike? Little do they realize the negative consequences of too much sitting around watching tv and playing video games, or heck maybe they do...but it just takes too much effort to do anything about it...lame lame lame.