It seems different industries are treated differently by the tax office.
Kids fresh out of high school have no trouble claiming personal training (fitness) courses or learn how to drive an excavator courses on tax.
The fitness trainer courses used to cost upwards of 8k before you were able to put it on vet fee help. The 2 month long excavator operators courses cost about the same.
I did a one day forklift course which had nothing to do with my current employment and the school told me to make sure I put it on my tax return. I told them I don't plan on using it for work but they replied it's a training course that will improve your job prospects in the future so it's absolutely fine. They have been in the business for thirty years and never heard of anyone being told they can't claim it.