If a worker wanted to hold some form of industrial action, there would have to be a properly constituted ballot, which; assuming there was a majority, would then require that worker to give his boss notice of when the industrial action was going to take place.

So, why is it that farmers, unhappy with the price they are being paid for their milk, can just decide to picket the dairy or supermarket in protest at their prices, without any form of legal ballot or anything?

Don’t you think that what is good for the workers should also apply to Farmers and anyone else in a similar situation?