I am sure the goats had a great time retrieving the food. I wonder what they gave them? My goats liked:
fresh new maple leaves,
poison ivy, (cleared our land of it and excreted something in the milk which has given me immunity.)
the bark off of fruit trees which my aunt had bought at great expense,
camera lens covers,
and the pages of library books.
Of course we mostly fed them goat chow.
They may 'prefer to learn on their own' but they do not like to be on their own. They are much more comfortable with a friend/accomplice.