This comes out of the long lived weightlifting thread, where @Dr_Paprika mentioned how he has never had any interest in running a marathon partly because it is so far removed from what he’s good at. My response, part joking but also serious, is that my advantage is that I am not very good at anything (athletic, and therefore not married to any specific class of activity). I do suspect that those innately with a type 2 muscle predominance tend to strength and sprint training, and with type 1 to endurance, as most of us enjoy more what is easiest for us to do well in.
But it got me considering the broad mindset of it, beyond fitness, for everything: as individuals are we best off focusing on developing our strengths to their max, or on identifying and remediating our weaknesses?
My WAG is that the answer lies in diminishing returns. There is some point of diminishing returns to time invested in each. But I think in general we (myself included) mostly avoid the working on weaknesses part and excessively focus on our strengths.