Without the adult 'leaders' Scouting would simply not exist. If you wish to work with young people then consider becoming a Leader , Helper or Instructor . If you are more of a back-room person then perhaps a role as an Administrator would suit you best or even a member of the Fellowship . In short - you can do whatever you can do, however much or little that might be. The Fellowship is a support group that offers help and advice to the rest of movement.
Age is no restriction and neither is experience.
All that is required is the will to help other people. Leaders A leader holds a warrant. Warranted leaders hold the main positions of responsibility within the movement and are required to supervise and lead in many areas. For instance only a warranted leader with the appropriate certificate and skills may take their pack or troop to camp. This time includes the odd Saturday afternoon or so as many district events are held at weekends.