Learning for life kids are not called "Scouts". Like Exploring, they are considered "participants". L4L is such an oddball program. You'll find close to nothing about it on scouting.org, and probably have never seen a "classroom" (their equivalent of a troop, crew, etc.), but as you said, makes up quite a chunk of BSA membership. I would keep in mind that exploring is technically a program of Learning for life and thus that is reflected in membership.