a world where multitasking has become the norm and they tend to be more open to new things do they solve the tasks more quickly than the adults. that this. study thing including our own we know that children are the tasks more slowly than adults and they make more mistakes. the frontal lobes take charge when we switch rapidly between tasks on the left as an adult brain on the right a child's. frontal lobes are not fully developed until we're at least 20 so children can switch gears as quickly as adults but it will take at least 10 years before researches know exactly how multitasking affects brain development when the children growing up with smartphones and tablets are fully mature.