Why It's Hard to Do Nothing

Doing nothing seems like it would be easy... But it seems that action is often easier than doing nothing. Sometimes, perhaps often, action is the right choice. However, if there is no reason to believe one action over another would be better, or action over inaction for that matter - why are we taking action at all? If we think about our efforts as spending time and energy, we can more adequately understand that inaction may be a valuable skill, rather than a risk.