>Uber has a rule that they won't carry unaccompanied people under the age of 18, so I doubt many kids are hailing Uber cabs as they will get rejected 99 times out of 100.
Given the reason Uber is being refused a licence because its understanding of rules and their implementation is deeply flawed, this is a totally flawed line of reasoning.
Uber having a rule doesn't mean it is actually abided by the "self-employed" drivers.
Uber may have a rule, but is there evidence that Uber is policing this and that drivers are enforced (at the 98+%) it ie. on turning up to pick up a lift, refuse the fare.
How many teenagers/young adults have been asked to provide proof of age?
I suspect there is plenty of evidence of U18's using Uber, just not officially recorded...