Goldfritha we are certainly allowed and encouraged to report on theories about the origins of frame tales at Wikipedia so long as they are sourced Anyone doing basic research on this topic will find that Michael E J Witzel is the leading authority on this topic and there are no other theories or controversy that I have been able to find it seems to be the prevailing mainstream view in academia Also these are not fairy tale collections that is an entirely different genre and article not sure where your getting fairy tale from these are frame tales