Although it is true that in many cases, the median is lower than the average, this is not always the case. For example, if the data points are all the same, the median and the average are the same. Furthermore, if the data points are not all the same, but the highest value is higher than the average, then the median can be higher than the average as well. This is because the median is the middle value of the data set, not the average of all values. As such, it is not always lower than the average.
Regarding left skewness, it is not a fable. It is an actual concept that is used in statistics to describe the shape of a data set. Specifically, it is used to describe distributions that have a longer tail on the left side. As such, while it may not be funny to you, it is a valid concept that is used to describe the shape of data sets.
