Except that if the criminal record causes no shame or is the norm in your family and friends, and you don't think you are ever likely to get a decent job or afford to go to a country that requires a clean record for entry, that doesn't make it the deterrent it would be to you or me.

I agree that existing community service is poorly managed for lots of reasons but for the looters who followed the herd, if there was a more enforceable useful version, I think it would do more good than putting them in prison for a few weeks. For those instigating the break ins and arsonists, then yes, jail is appropriate but probably won't stop them offending again on release.