Testing ones ability with equipment in a controlled manner one would always be signing waivers and disclaimers, even hospitals!
Growing up we climbed trees with no safety net, tested ourselves against our friends, made rope bridges and monkey ropes over rivers if you fell it was always at your own peril irrespective of whose land you were on.
No one today tests themselves in personal capability to the full, too many laws in place.
Building nations who follow rules, also not always a solution...