text: Any threshold value is arbitrary, and will be subject to endless "too-high or too-low?" arguments.  As an example, just look at the R600 000 income threshold set up for student assistance under the #FeesMustFall banner.  That just started out as a "fer-instance" figure during early discussions, and somehow got elevated to the status of a gospel-given absolute number, and got built into the formality of the outcome.