How would you deal with weight issues in your school?

the story of the horse that couldn't pull its own weight so the donkey did his work for him and the farmer shot the horse cause he didn't need it. you can't carry others weight on your shoulders, although you can shun other comments on the mats, the students have to deal with their own issues to make them stronger. eveyone's path is different, that is just theirs, but they come to the dojo for a little encouragement from their instructors and a little more self esteem through training and rising to the ranks. no doubt the cynical people will soon quit as they don't understand the point of martial arts and the ridiculed students will grow up to not only never ridicule but to also teach others to never ridicule.