Hi ToiyaCurrent1351453, that's a good question! It's all dependent on the state of the child stories - I pulled this from the Help article:
" When the state for all of the child user stories are set to Accepted, the parent user story is automatically rolled up to reflect the Accepted state regardless of its initial setting. This state cannot be customized."
So basically, the parent story will only move to Accepted once all child stories have been accepted.
Please let me know if that helps!