Scouting has different sections for different ages:
Beavers - 6-8 years old
Cubs - 8-10½ years old
Scouts - 10½ - 14 years old
Explorers 14-18 years old - Not all groups have Explorer units. This is a District organised section.
Network- 18-25 years old - Dartford Network is an active group of 18-25 year olds who meet-up and have fun