Likely that the clock will start running straight away. DVLA create a 'shadow' licence for those that don't have one.So I assume he will apply for a provisional licence at 16 so he can get rid of the points as soon as possible.
True but was more conspicuous probably due to his age and the high speed he was deemed to be travelling at. Also these are pedal less so propulsion will be known not be of rider input.Remember he was only prosecuted for the same offences anyone riding a deristricted ebike would be.