My DD who is 7.8years old I have noticed in the last few days occasionally has BO. Now she is an early developer she already has size 2 feet and both her daddy and I were at full adult height by the time we were 13. I also was the first at school to get my periods so I am not surprised that all of this is relatively early.
But I seem to remember from Junior school some people were using deoderant from about year 3. So do any of your little ones use deoderant and if so which one?