Well. We don't know who did this, yet.
They might be 'feckless', unguided youth, with useless parents.
They might be the sons of single mums, out all hours, working 3 jobs, to put food on the table. Dads nowhere to be seen.
They might have started in SureStart, before it was more or less axed.
Is Market Deeping deprived? How much social support is there in the community? The schools?
Will the 'local community' consider this a deeply embarrassing slur on them, or 'teenage hi-jinx/what can you do?'.
The saddest thing is, there is a chance, some of these boys (yes, I know, assuming they're male...) may discover their own granddad has his pride and joy train-set there, vandalised.
But probably not.
I hope that the national, if not international interest this has aroused might cause the judge to be 'creative' in their punishment (after costs paid).