If their parents are not able to provide for the children then a help ranch could be good for all.  A family could have their own ranch house, and could live with their parent/s.  The children could go to a day care at the ranch and all would benefit by a relocation. Or, for the good of the children they could be put in foster care.  
People in wheelchairs can also benefit from a ranch setting.  They will be able to wheel the chair through the chicken coup and pick up the eggs each day.  Or, he/she could work in the office, monitor the dairy milking machines, or help out in the library.  If he has a disability it would be evaluated.  Not all could work, but could still be able to perhaps learn some skills or be directed to the right program for them. Most all acute homeless have mental disabilities, and or drug and alcohol abuse.  You cannot even start to solve or diagnose a person's mental state until they have detoxed, then they can have the best chance of a proper diagnosis.