... Is that I can't draw. I think it goes back to my desire for perfectionism (I'll blame Catholic school, that always works). I need to get something down on paper that's perfect the first time. Which this picture is not because (1) I don't have any natural artistic talent like my youngest does and (2) I don't have any training/instruction like my youngest does.
I think any artistic ability in our family comes from my wife. Combined with my wiring, my youngest is quite blessed. :-)