I’ve gone over bias in previous writings. I would argue that children are purer scientists than adults. We are born into this world without assumption or bias of any kind. We adopt these as we get older.
Children start without even a hypothesis. They just want to see what will happen. A child makes no assumption on how a glass will shatter. It’s just fun for them to stand on a chair dropping glass after glass to see in what way the glasses break (while the parents freak out, of course).
Adults try multiple trails assuming that the same action under the same circumstances equals the same result. Children want to see if the result really will occur again.
If an important-sounding adult with X credentials says that Y will occur if Z, then other adults take the word of the important-sounding adult without repeating the experiment for themselves. If anyone, authoritative or otherwise, tells a child that Y will occur if Z, then that child will try it for themselves based solely on interest.
Adults assume. We often exert our opinions as fact. We have to remind ourselves to test data multiple times. We have to consciously remove our bias from the work as much as we can.
We could learn much from how children observe the world.