About the community in general. This different ceremonies at each birthday, their assignments, house of the old, then release
The ones mentioned are when you are 1, you get named. When you are 9, you can ride your own bicycle and do recreation activities, when you are 12, you get your job(assignment) and start training ofr it. The ceremony of 12 is the last ceremony for children. The old get released (killed) when they are too old to help the community. Infants get released (killed), when they are hard to take care of, or born with a twin that is bigger. Some people chose to be released (suicide).
