Simplify the following text for a Grade 9 native English-speaking person.
Original: Still in other societies , each family would have a family member to shepherd its flock , often a child , youth or an elder who could n't help much with harder work ; these shepherds were fully integrated in society .
Simplified: Still in other societies , each family would have a family member to shepherd its flock , often a child or young person or an old person who was not able to help much with the harder work .