Rank advancement in Cub Scouts is not like rank advancement in Scouts BSA. In Cub Scouts, it's grade- or age-based. In Scouts BSA, the youth hold the reins.
Cub Scout Program Updates Announced
Cub Scouting (Boy Scouts of America) - Wikipedia
Family Scouting - Cradle of Liberty Council
Pin on Scouting
Scout, currently a joining badge, to become its own rank
Scouts BSA & Venturing - Glacier's Edge Council
Cub Scout Uniform - Boy Scout Troop 358 & Cub Scout Pack 358
Cub Scout Program Updates Announced
First Aid Information from the Owl Patrol - Boy Scout Troop 253, Mesa AZ