Bizarro is brought to you today by Future Families of the Past.
I used to have children a long time ago (now I have adults), before it became socially acceptable to put them on a leash. As weird as it looks, I could have used this device and would have in a heartbeat.
Toddlers are energetic drunks with no sense of their own mortality, so if you don't have them tethered, there is nothing to keep them from darting out into traffic after a shiny object. I tried tying a water ski rope around mine's waist but this raised too many eyebrows and questions from mall security guards. I moved to ankle weights, just to slow them down, but that only developed their leg muscles, making them even faster when the weights were removed. Drugging them seemed harsh, braiding their hair and hanging onto the end of it seemed cruel, as did a shock collar. There was just no good answer in those days.
But modern science has brought us toddler leashes and all is well. Now if we could just get parents to carry pooper scoopers and clean up after their kids, we'd have a truly civilized society.