Was well prepared by mum, and a late starter, but was expected to keep periods very secret in my male household and so always thourght that I would celebrate any daughters maturity, in a more joyful way .
I guess it was the 70's, but it always made sense that girls were being obviously suppressed at a time when they had a life event to celebrate not hide it as a dirty shame.
When my girls were born, I had a gold ring made for each with their names in . (I like heirlooms)Considered a small party ,but when DD1 started at the age of 14 ,(last week!),settled for just being there for her.
Has worn her ring since but will take it off when they go back to school.
Shes known about periods since she was 8 , her bodys changing, but she can mature at her own rate, Shes still got a bit more childhood inside her,if I play it right having a period doesnt have to be the all or nothing route to being considered an adult woman ,with all the stress that involves, that will come in time.