Totally agree. OP missed the important point.
In the Ronaldo story, he has made a decision to challenge himself. At the point this decision has been made, his technique would already be at an advanced stage, his diet would have been designed specifically with a team of chefs and nutritionists etc, his knowledge of the risk of injury would be coupled with the advice of some of the best trainers/doctors at an established sporting business. He is an athlete but not through his own hard work. It is the combination of his desire to push himself and the support of a vast knowledge base of trained professionals.
Throwing a cheap bass at an inexperienced bassist is not really the same. It'd be comparable to placing weights on the ankles of a toddler who is just learning to walk and expecting them to get the same benefit as Ronaldo.