Children typically disclose purposefully because they want the abuse to stop, or are seeking emotional support in dealing with the abuse. Some children report when the perpetrator has left their environment, so they feel safe in reporting.

Articles cited by Dutton:
Alaggia et al, 2019; Crisma et al., 2004; Dutton, 2011; Jensen et al., 2005; Lamb & Edgar-Smith, 1994; Sorensen & Snow, 1991.
Areas of Inquiry and Summary for Expert Testimony and Supporting Research Citations
Wendy A. Dutton, M.A., Ph.D., LPC, February 2022