Tasering children

Tasering children
It has happened before, and as sad as it is I am sure it will happen again. Why were tasers introduced? To allow police to use non-lethal force in situations where a lethal force would not be necessary? Some people seem to have got the logic wrong and now use tasers every time they think they can not get away with using their gun:
https://www.courthousenews.com/2012/10/30/51809.htm
#taser  
https://www.courthousenews.com/2012/10/30/51809.htm