I like Buddy's solution to this.
The whole point of calling it a challenge is the fact that it's supposed to be something you can't ordinarily do outside of a competition. On the actual Survivor, you don't get to pick the challenges you compete in but, if it's something you're bad at, your teammates will carry you through. That's why the next iteration is going to have teams and where the team works together. I'll explain more once the rules are released.