i work in a similar industry, and we simply can't have non compliance with cut gloves.
This should be made clear at induction, if there is an issue with the PPE issued then try other types until you find the right glove.... if they can't wear or use the PPE, after you have done everything possible to find suitable gear then take them off the knives and eliminate the risk.
Staff should not be doing the job if they can not or will not abide by the PPE requirements.
Supervision needs to be looked at, some things need to be handled in a firm manner.

it is common to have an employer pay for the course and the employee to pay for the endorsement to be added to license, its $40 payable at a vtnz office.

If they are assessing against NZQA Unit Standard 25045 (which any of the height safety course I look up are) then they should be instrcuting and assessing more than just harness safety systems, as it is pretty clear in the assessment criteria that the course is to cover the common types of height safety equipment employed on height work in the workplace (which to your point specifically includes ladders) - Outcome 1 & 2 > https://www.nzqa.govt.nz/nqfdocs/units/pdf/25045.pdf

i completed this course it was part of a group of 4 including level 3 and 4 credits for working at height.
it requires refreshers as well........ was actually very good

inhouse trainers and assessors are great provided those that are appointed to that role have the extra training required to perform that task.

yep. look into a instant fine situation as a tool to encourage compliance for the small stuff that can turn ugly. take it out of the court room.

Employees who have two jobs need to make sure that the hours worked and the nature of the work does not make them so fatigued that they, or others, are at risk of harm on either job.

if your business is aware of it then conflict of work would mean going down an HR route.
we had the same issue with temp workers working with an agency for Fonterra, Temp staff working shifts at one site and working the next shift after sleeping in the car park at another site.
Fonterra full time staff have a stand down period of 10 hrs between shifts.

send your bi lingual staff on H&S courses, as many as you can fit in before the contractors arrive.

full disclosure, for some alcohol and drug policies it may mean medical cannabis may have to be included in an update.

For new elected reps that have past training< we provide online training NZQA 29315
health and safety representative, as a refresher. we can continue further training the second year up to stage 3 if they wish to attend.

flammables good cabinet at each shed

a daft rule put in place by someone thats never sat on a forklift, coming from the dairy industry a peaked cap actually helps overhead light not impacting while placing product at higher levels, for the most part your vision is directed downwards operating a forklift so caps have no bearing on vision.
exiting buildings into direct sunlight can cause sun strike, peaked caps actually help with that light change.