It amazes me how different a persons perspective can be. For the most part, we are all like minded on this forum having had at least a limited MA experience. To be certain, there is a lot of variance in styles. TMA, FMA, open handed, weapons, etc... each have their own uniqueness. To take this further, within each MA category each system is different. And this continues on to each style, and then even further to each school and finally to some instructors individuality.
Even with all this grouping of the MA's there are constants. For example, the large majority of styles teach fighting in some form. We do learn a MARTIAL Art so naturally this is at the core. The approach to teaching fighting is as varying as there are brands and models of cars but, ultimately the intent is the same. To save oneself or prevent bodily harm. And then, even this intent is somewhat inconsistent when you think of the FMA's in a sports format.
Most, not all, systems use some type of Forms to supplement or compliment their teaching. There is a healthy amount of overlap in form names, numbering, meaning, and application. There is likely more that is unique regarding forms within different systems. This is a dynamic element, being changed over and over as forms and form set get changed and refined by styles and individual instructors. Most of the time it is a graceful fluidity.
One of the most consistent absolutes I have ever heard it that one of the intended purposes of forms is so an individual can practice their kibon and technique on their own. It is an incredibly common sense idea. Not so prevalent today, but 100 years ago it is easy to envision someone who only get input from an instructor intermittently so individual practice was paramount to protect themselves and possibly their village.
Forms, or their semantic partners, are a logical way to present subject matter to a student. They are necessary for organization for both the student and instructor. In my MA experiences and travels I have been exposed to dozens of form sets. Each satisfies the intended purpose of technique, footwork, stance, balance, strength, mental, and much more. It is really cool to see the variety in the approaches used to teach these concepts.
@skribs , Your last bullet jumped is confusing. It is one of the base purposes of practicing in a form format. Much of your post is confusing.