How is the large number of bones?

Question

found in the feet and hands of human beings both an advantage and a disadvantage ?

Answer 1

having a large number of bones and joints makes it possible to have a wider range of movements at different levels, this is an advantage but at the same time there is an increased risk of having fractures due to many but not so strong bones like metacarpals and metatarsals,this may be the possible disadvantage.

Answer 2

A numberof bones in the wrist hand and fingers with joints facilitate wide range of movements like grip,opponens.and flexion.Writing,holding a cup and other very useful and needed movements are possible because of the small bones and joints. Almost no disadvantages except in trauma.
In the feet bones curve to form a bony arch to facilitate weight bearing on small feet. Flat andt raumatised feet can not stand the stress of human weight.