Getting brained by a piece of airplane is in no way similar to riding a motorcycle. In the former you are not assuming any additional risk and is truly random. Choosing to ride a motorcycle is taking on all kinds of extra risk. You can mitigate it with gear and training.
But who cares. As long as the orphans are over 6 years old they don't need you anymore. All of their behavioral patterns are set for life and all you're doing after that is paying the bills. And if they're destined to be productive members of society, losing their parents will only make them stronger people.