It wasn't skipped over. They point it out in the episode about ice worlds. You might be thinking about the first disc in the series which is a sort of summary of their entire collection.

I just did. The top result is your post!

I don't think the gp was advocating total road anarchy. This tech certainly allows bad parents to compensate for their lack of parenting skills with technology. I suppose this is good for those of us sharing the road with their kids but just wait until insurance companies and politicians decide that they will use your money to 'encourage' car companies to install these in all new vehicles. Also, how is gp's comment flamebait?