The "exploring" is because they're told to make a choice. Is there something similar to developing object permanence but with abstract concepts or probabilities

The "exploring" is because they're told to make a choice. Is there something similar to developing object permanence but with abstract concepts or probabilities that happens after that age? And the abstract is here: https://onlinelibrary.wiley.com/doi/10.1111/desc.13026 https://onlinelibrary.wiley.com/doi/10.1111/desc.13026