I think with a high speech skill it could be realistic, he wouldn't have to think of himself as a fighter, he could be more like a medic.
yeah he's a little old, so are the enclave remnants, didn't stop them did it!
"You too have known loss, and that loss torments you still.
You hope hatred might someday replace the pain, but it never goes away.
It makes a Man hideous, inside and out."