Here's My Thing

I was buying deodorant the other day and when I walked out of the store, I saw something odd out of the corner of my eye. To my surprise, it was one of those late 90s early 2000s vibrating cars that kids would ride. I hadn't seen one of those in ages. Is it like the fairly odd parents where they disappear when you hit a certain age? Why are they not as common anymore? What am I missing?