I have a junior dev on my team that brings this up all the time. I don't disagree with him, but as soon as you've worked on the client accounting side of things

I have a junior dev on my team that brings this up all the time. I don't disagree with him, but as soon as you've worked on the client accounting side of things, you see that hourly billing is the absolute best, most transparent, and easiest way to bill for work.