The problem is that as you said it takes a 'serious effort', and yet you think you were "lucky"(perhaps experienced, intuitive, mature, knowledgable enough), bu

The problem is that as you said it takes a 'serious effort', and yet you think you were "lucky"(perhaps experienced, intuitive, mature, knowledgable enough), but other teams that aren't so "lucky" make the same effort without the results and get frustrated, because is frustrating to be late all the time. So I can understand that some people just want to drop estimations, but I don't agree. I wrote a comment below on why still we need estimations and how I think the risk and frustration could be reduced.