YROs can include secure accommodation - they also deliver significant rehab support, curfews, community service etc. They are the second most severe punishment after custody.
If you look at the stats, they must work:
Offences:
in 2015 there were 87,160 offences, 2,000 were sexual offences (2.3%)
In 2022 there were 34,020 offences, 915 were sexual offences (2.7%)
In 2025 there were 35,582 offences, 1,476 were sexual offences (4.1%)
Sentencing:
For young people convicted of an indictable offence:
In 2015 9.5% were given custodial sentences, 73% community sentences,
In 2022 7.5% got custodial and 79.3% got community
In 2025 6.3% got custodial, community increased to 82%.
Re-offending:
Reoffending in 2017 (2015 cohort) was 40.9%, overall and 13.2% for sexual offences
In 2024 (2022 cohort) it was 31.8% and 9.1% for sexual offences. The next lowest is violence against the person which has a re-offending rate of 19.3%.
Re-offending for young people who have committed sexual offences is lower than the same cohort for adults (29.5% re-offending overall, between 13% and 16% for those convicted of sexual offences). Given that adults don't have the option of a YRO type sentence with the same sort of rehabilitation focus, then the data would suggest that rehabilitation for young people does work.