Is it normal to have overlapping toes?

A contracted toe. A hammertoe is an contracture or a bending of the toe joint which results from a muscle or tendon imbalance due to the mechanical or structural changes in the foot. This can be hereditary or due to environmental factors such as tight shoes. This bending can lead to abnormal pressure distribution resulting in pain, swelling, blistering, and corns.
Overlapping toes. Overlapping toes can be a normal inherited variant (typically the 5th toe over the 4th) or may be the result of an inflamed joint at the base of the toe often associated with a hammertoe. So in short the answer is it cnabe.