Given that quantile might be moved into stdlib soon, maybe now we could make a push to add an option like what R has.
Then in dataframes we could use try...catch twice, once to see if the user-defined object has a normal median working with it, and a second time to see if a special ordinal option works, then return whatever that is for quantile and median.
But then add another method for strings… since the user probably isn’t interested in the minimum and maximum string.