For a political system, you need to convince many people if you want it to change. You can't just "move on to solutions".

For agile in a company, in my experience the developers are not the ones bringing the processes, and they don't really have a choice. And even then, again in my experience, juniors tend to get excited about everything that looks new. So part of the team will think that estimations are a good idea in principle. Until they do it long enough to realize that the whole methodology is a big joke.