At a guess you were a lot lighter back then. The speed of impact would be the same but the total energy to dissipate a fraction of what it would be today. So better not to try that particular trick again.
"You can drop a mouse down a thousand-yard mine shaft and, on arriving at the bottom, it gets a slight shock and walks away. A rat is killed, a man is broken, a horse splashes."
I used that particular trick as my escape route during tag. We would play on this structure made from wooden rolls, it spiraled upwards, about 3.5 meters high at the top and I found that I could easily jump down as long as I bent through my knees upon landing and touched down afterwards with my arms. Magic :)
Yup. As small kids we would jump from a tree that I wouldn't consider doing as an adult. I don't think terminal velocity is important at that scale but square-cube certainly is. You landed pretty hard but I never heard of anyone getting hurt.
