Scotland went back in August thats not 24 hours.Current and historical data of the Coronavirus outbreak in Scotland. Includes breakdowns by region, maps, charts, and more!www.travellingtabby.com
The data is pretty clear.
The rise start in the 15-24 age group and prior to the return to school then started rising in the 0-14.
Cases fell back in the older age groups and then the younger age groups.
As said before children don't start school, catch, spread and test positive within 24 hours of returning to school which would needed to have happened.
Also if school children caused the rises within 24 hours of going back to school then what's happened in England where cases are falling over week after children went back
I gave you links showing scnools closing and as well as links showing teachers are off sick, i have heard this from teachers in schools.
So ignore facts if you want.
By the way travelling tabby uses data from PHS, which is where graph below is from.