Normally, sometime in the beginning weeks or months I have a talk with new students.
I usually tell them that the longer they stay with the martial arts, the group of people in class with them when they started, will get smaller and smaller.
I tell them that because of factors like ability, effort, attitude, and attendance, they may be passed up by other students, or they may pass up other students.
That the more they put into their training, the more they will get out of it.
And that they have to understand that there are so many factors in their lives that will effect the amount of time that they can train.
The list is endless:
marriage
divorce
new baby's
night school
new jobs
family obligations
other sports or activities
illness or injuries
lack of strong work ethic
low athletic ability
high athletic ability
supportive family
non-supportive family
supportive instructors
mediocre instructors
etc, etc, etc,
Unlike the McDojo's, we can't put our students on a 18-24 month black belt program, and tell them that "you will be ready to be a black belt at the end of this program".
But, we can tell them that we (Kajukenbo, and the school) are a family, and that we will be there for them in the good times and bad. But, being a family means that everyone shares the family spirit. Family members disagree and fight at times, but the family can't continue to exist if it is a constant thing. Just like real life, jealousies, animosities, and envy, will destroy relationships. So, they have no place in the Kajukenbo and school family.
So, I guess my suggestion is for the instructor to sit down with each student and talk about the factors that are effecting (good or bad) their progress. And point out that it's not a bad thing to get behind other students. Everyone progresses at their own rate. The single adult student that can attend classes 4-5 nights a week will progress faster then the married student who misses a couple classes a week because he/she is watching their child play little league or something. But being a good parent is more important then your training, so those family obligations come before your Kajukenbo family obligations.
As was pointed out by GM Bautista, "ability", "attendance", and "attitude" are important factors in a students progress. Make sure the students understands that some "ability" may be a gift from God, and "attendance" may be limited by other obligations, but "attitude" is 100% controllable by only them.