Law and society at one point were ok with kids under 15 working in mines and factories. Just because we consider 19 year olds right now 'adult enough' doesn't m

Law and society at one point were ok with kids under 15 working in mines and factories. Just because we consider 19 year olds right now 'adult enough' doesn't mean that this won't change with e.g. new scientific discoveries. For example neuroscientists believe that your brain is fully developed around 25 years old: http://www.businessinsider.com/age-brain-matures-at-everything-2017-11 http://www.businessinsider.com/age-brain-matures-at-everythi... (random link but there is more literature on this topic)