Not really what the topic is about, but I think it's always important to remember that there is a countering factor if the timescale is long enough (years) - your cognitive abilities will decrease with age, so decisions made earlier may benefit from this.

I imagine that there might be some age at which your (always-increasing, but perhaps subject to diminishing returns) experience and your (always-decreasing, after around 20 or 25) cognitive ability cancel, resulting in a peak in decision-making ability ceteris paribus.