I don't get it either. I think Finn and Josh are Sambuca's age. About age 15, or 16, and Jess is a year older in year 12
This is how it works, I think. I am confused a lot becuase I am scottish and high school is different. you start when you are 12, or nearly 12. And start in S1, And finish in s6, if you chose to stay on.
Jess would be 16, nearly 17. Ruth has been moved two years, becuase she is smart, she is in year 11, but was in year nine.
As year sevens are aged 11, year 9's should be around 13 years old, so Ruth is 13. year elevens would be aged 15, and year twelves aged 16. And the sixth form aged 17.
Densil was in year 7 when he first arrived, age 11, he will now be in year 9. aged 13.
So as far as I can work out
Josh
Amy
Finn
Sam.
Harry
and the rest
are all aged 15 nearing 16. and are in year 11.
Jess
Ruth's brother. can't remember his name
and the rest of their class.
are aged 16 nearing 17, and in year 12.
There are no regular children from year 7, 8, 10, or the 6th form which is for 17 year olRAB. as far as I can work out.
The year nines are.
Densil.
Emily. if she ever appears again.
Ruth, who was moved up two years.
The main kiRAB are in years 11 and 12 as far as I can work out. Jess is older than Finn and her brother by a year or so.
harry doesn't look nearly 16 to me, I guess he was just put in that year so he could have storylines with them. He looks 14 at the most.