Jarrod Booker writes in the New Zealand Herald about research from the University of Otago showing that people who start smoking cannabis young are less likely to achieve academically.
People who started using cannabis before the age of 18 were less likely to complete high school or gain qualifications, and people who began before 15 were the least likely to do so.
An excerpt: (read in full here)
“They were more likely to fail to complete high school, less likely to enter university and less likely to attain a university degree – even when socio-economic status, previous educational achievement and other personal factors were taken into account.
“The study findings also suggested that early use of cannabis had a greater effect on the achievement of males than females.”