adults more prone to spontaneous false memories than children are. However, children are still more vulnerable to externally induced false memories, like those that stem from leading questions or learning new information after the event.
The National Institute of Child Health and Human Development provides one evidence-based protocol investigators can follow when working with young witnesses.
The author wrote a book about this subject in 2022:
People regularly underestimate children. They are full humans, they just lack some experience. And as this article shows, that lack of experience can also make them less biased, which is even a good thing.