We must layer all trees with bubble wrap. Fill in all valleys and low spots. Level all hills and mountains. Then require helmets, eye protection, dust masks and padding at all times (indoors and out) for everybody. Ban all risky activities and behaviors. It’s for the children!
-Or-
Just outlaw lawyers.
As someone who spent his childhood years sledding off of a highway, I can tell you that Flexible Flyers can be steered. Saucers cannot.
Every year, there were injuries, including paralysis as well as broken bones. Every one of them was because some kid got on a saucer, held on for dear life and when approaching an obstacle couldn’t get off in time.
On my sled, I went down head first, screaming with glee at the speed I was getting and when I approached something, I either steered away from it or in worst case, rolled off the sled.