To extend the charity a little to the side, maybe he built his self-worth on handiwork and had the all-too-known imposter syndrome so his preference for doing i

To extend the charity a little to the side, maybe he built his self-worth on handiwork and had the all-too-known imposter syndrome so his preference for doing it himself was actually a subconscious way to avoid being seen for how flawed he thought he was.