[bmj]

It would be interesting if programmers took "sketching" to be a valuable and necessary part of programming. It's common practice for painters to make a pencil draft first. It's common in industrial design to produce prototypes.

The issue is that in art or industrial design, someone can't reasonably sell the prototype as a completed work. With software, particularly anything that is web-based, as soon as a sales person sees anything that vaguely resembles something they can sell, they will sell it. Sales means bookings/income, so that prototype becomes the MVP.