Maybe this is not the knife for him. As I type, I can see a scar from my trusty Buck 110 that I got around the same age.

I now use lock back knives with the AXIS system like those on the DR RSK MKI. I like the system because it is truly one handed, very strong, and I have yet to cut myself closing the blade. (But the day is not yet over!)

New Benchmade folding knives use this system almost exclusively, so that might say something also.

Bass Pro has a decent return policy, maybe a change is needed, or just accept the risk.
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I do the things that I must, and really regret, are unfortunately necessary.

RIP OBG