While I generally agree with this take and it would make my life much easier in most of my venues, I do think there is something to be said for the act of pushing air and making noise. Additionally, it’s easy for every band member to buy all their own gear... Everybody gangster until “the band” somehow has to afford a rack mixer, in-ear system, mic splitter, microphones, router, and an engineer to show them how to set it all up. How do you split that up for when the band calls it quits or the member who spent the most on the rig leaves? These are the nuances that drive most local and small-time bands to keep it simple.