The school will vary depending on which country, state or even school district you are in. There are many different ways to split school ages into various schools.
12 Years
12+ years of college
12 years
12 years total 12 years total
kids can go to grammar school between 6 - 12
12 years
12 years
12+ years of college and medical school.
It taked you 12 years to be a Pediatrican.
K-12 are mandated.
You go to 12+ years of college and medical school.
10 to 12 years