Kelly got me an apron for my birthday last year which I thought might be taken as a hipster affectation in my semi-public, sidewalk-adjacent workshop. But on the very first day I wore it I dropped a sharp chisel in my lap and realized that this garment, made out of sturdy canvas, actually has a purpose. Then there’s all those pockets in which to put rulers and pencils.
A quick perusal of the interwebs will show you that, at one time, all of the trades had their own aprons. In addition to safety and tool holstering, aprons are from a time before the cheap, disposable clothes we now wear.
For more on the history of the apron which some nice examples, see this article by Delores Monet.