We lived in Texas in the mid to late 1960's. Most of my mother's students came from our Church congregation and also happened to live pretty far away from our neighborhood. One family had 12 children and not enough money for them all to get luxuries such as private lessons. My mother loved this family and saw some real talent in many of the children. She offered to give lessons in exchange for having the mother, who was a good seamstress, sew for us.
My mother was a pro at BARTERING --- music lessons for yard work, babysitting, produce from the garden, bottled fruit, rides to activities for her children, and the list goes on. I am sure this hearkened back to her pioneer heritage and lessons from living through the Great Depression of the 1930's. When people have no currency, they trade.
With the way things are heading in our country with so many people put suddenly out of work, we may need to get back to the thrift practices of our ancestors!