How old is some one when they start and finish high school?

Question

I know they could be one of 2 ages, depending on whether they have had their bday or not by the end of summer term, which two ages would they be when they left? and joined? Thanks x

In the Uk we dont have high school or junior high, so I dont know lol

we just have juniors from 4-10 and "comprehensive" from 11-16.. and college or 6th form from 16-18. Thanx

Answer 1

in scotland u go to primary school around 5 and finish when ur 11

the go to high school from 12 to 18

Answer 2

17-18

Answer 3

Usually American high schools are from around 14-18. As you said though these ages differ depending on your bday.