Avoidance is a funny thing. The amount of energy and time required to avoid almost always outweighs the amount of energy and time it takes to do what needs to be done. Why do we avoid? There are probably many reasons we could come up with. But I think the deep, overlying reason is we avoid to avoid fear.
Next time you find yourself in a place of avoidance (it will be sometime today), ask yourself, what am I afraid of that has me choose to avoid? If we ask ourselves this question, we might find access to choosing something else; and avoiding less.