True. I would like to add that being a law student, much less a lawyer, is a lot like being an actor/actress. (1) The best ones aren't always the most successful (i.e. it's far from being a meritocracy); (2) Geography, timing, networks, and sheer luck can play a huge part in one's success; legacies, family networks, nepotism, racism, gender bias, and beauty bias can also factor into one's success. Added to the above considerations, law students are entering an endeavor in which, no matter how hard they work, their desired success can unfairly elude them - with life-altering consequences.
But I agree with OP's main point: either do the damn thing or don't. Boxers know they can be killed every time they step into the ring; yet they do it fearlessly.
BTW...it's "...believes in 'himself'?"
In general I like your tone and good-intentions, I really do. You do however, have this uncanny ability to never make sense, a fact compounded by your propensity for weird shit like bolding, underlining and or doing both on pure whim and caprice etc.
Also, why boxers? Why couldn't you use a soldier as an example? Boxing is relatively safe. Imagine in your example, that the actor/actress had to borrow the non-dischargeable equivalent of a mortgage for what amounts to a chain of risks the results of which depended on some of the intangibles you mentioned. Is it rational to head into such a proposition with caution as opposed to 100% confidence?
Revisit the following part of your quote in relation to the OP:
"Added to the above considerations, law students are entering an endeavor in which, no matter how hard they work, their desired success can unfairly elude them - with life-altering consequences."