The mitigating effect of an offender's youth operates on a sliding scale: as the seriousness of criminality increases, the weight to be given to youth correspondingly decreases, but only in the gravest criminal offending with no realistic prospect of rehabilitation may youth be viewed as all but extinguished. A sentence may offend the totality principle without being 'crushing' — the test is whether the total sentence exceeds what is necessary to achieve all sentencing objectives, not whether it destroys any reasonable expectation of useful life after release. Crown submissions on sentencing range that fail to account for totality may contribute to appellable error.
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