Would you want to babysit someone as a Captain? Have to watch everything they did as they tried to kill you at every opportunity?
If you're getting paid a checkies wage, then sure that's part of the job. If you're a line Captain then you should not be exposed.
cadetships in Australia are half arsed. A real cadetship is fully funded by the company and is not used to drag the terms and conditions down of experienced Pilots.