With this line and many other similar ones, Anakin vents his frustration, feeling he needs to be progressing at a faster pace. I don't need to repeat them all here, but if you, gentle readers, have other examples that help illustrate the point please fill in my blanks. We've got a classic situation where the child wants to progress faster than his guardians want him to progress. On the other side, the Sith are coaxing him to indulge in "adult behavoir" kind of like those baddies from Pinocchio.

I don't think that anyone on the Council necessarily disagreed with Anakin; they probably would have to admit they were holding him back. The training provided at the Temple by the Council and the other Masters was specifically designed to slow Anakin's development. Palps was right when he said the Jedi feared Anakin's power (well, the midichlorian count, I suppose).

I think the "slowing down" was part of any Padawan's training, but that it was especially important (in the Council's view) as applied to Anakin. The first reason was fear. That's easy enough -- they were just scared silly about what he might do. Probably not a good idea to give a kid a lot of explosives.

This explains why Luke gains his skills in a hechuva lot less time than Anakin or the normal Padawan. Anakin had over ten years' training before becoming a knight. Other Padawans had decades. Luke had a few days with Ben, some training with blue-ghost Ben over a 3 year period (intermittent, I'd imagine, but no more than 3 years giving Ben the benefit of the doubt) and a few days or weeks with Yoda.

This also explains Vader's comments that, "Obi-Wan has trained you well." Vader probably figured that Luke got a bunch of training before the Battle of Yavin.

The second reason, though, is that the Council believed that slowing down Anakin's growth would provide him the maturity necessary. "Maybe when he gets older, has more experience, he'll be a bit more balanced and he'll do what we think he should be doing to fulfill his role as the Chosen One." By failing to allow him to develop, they probably retarded other areas of his development as well. Giving the Padawans more time, and taking baby steps with their Force sensitivity, probably averted rash decisions and helped to keep the Republic together.

They did have a valid concern. Going a little EU on you all, during the Clone Wars, Palps' argument for giving Anakin a command role is that Anakin is a good fighter. That's just silly. There are a lot of good fighters that would be horrible commanders. It's two different things. This plays on Anakin's desire to "proceed faster" and highlights the differences between the Sith philosophy and the Jedi philosophy.

So, the Jedi were legitimately concerned about Anakin moving foward too quickly but they may not have given him enough room to develop.

Give me a call in ten years to see how I'm coming along with my kids.