Comment by necovek

Uhm, I am pretty sure kids do not require signed permission to go on a field with their friends and play basketball or football (either the European or American... or Australian one :). And you are likely to not even find out about it unless someone has broken something.

Signed permissions are needed for "organized sport", where there are other adults or companies that can be held liable in case something relatively usual happens (like broken bones in contact sports, but also pulled or ruptured tendons/muscles in non-contact sports...).

So the challenge is: how do we ensure kids enough freedom to do the things which they need to explore themselves, while ensuring no life altering harm of high chance (death/disability/going to jail...) comes to them or they instill on others — and do not have to have them tracked completely throughout their lives.