The government has revised the guidance about how local authorities should respond when a person who has grown up in care asks to see their care file. The Guidance is statutory guidance: local authorities are required to follow this unless there is a good reason not to. This guidance is in Volume 3 of government guidance called Planning Transition to Adulthood for Care Leavers.
It states that care leavers have a fundamental right to access information held on their care records. [Para 4.28]
It makes it very clear that the principles and standards for good practice apply to all care leavers regardless of their age. [Para 4.27]