A daily practice is very important. Often that happens at home and that is more than okay, it is desired. However, the more one practices (at home or elsewhere on their own) the deeper they etch the samskara of the practice. This manifests as misalignment and poor actions. It is for this reason that a class with a sound, skilled, alignment-based teacher can be profoundly helpful.
Just as we deceive ourselves in our living in the outer world so too do we manifest avidya (ignorance) in our inner practice. And for me it critical to occasionally be nudged back on course or have something brought to my attention that for some reason I was overlooking.
There is, of course, a different energy to a solo practice at home versus a class practice and there is (or can be) a very sweet harmony in class when the attendees all understand the concept of releasing the ego. However, when students bring a solo-practice-mind to a class it is both jarring and distracting.
