The children and families minister Edward Timpson, whose family fostered nearly 90 children, said allowing those in foster care to stay with their carers until they are 21 gives them "sufficient time to prepare for life after care."
I know from the many foster children I grew up with how crucial it is for them to be given sufficient time to prepare for life after care.
A growing number of local authorities already offer young people the choice to stay but with little financial support it can be challenging for their foster families.
Now all councils will have to follow their example, and we are giving them £40 million towards the cost.
This will allow the 10,000 young people leaving stable and secure homes to make the transition from care to independence when they are ready, rather than when their council tells them to.
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