My son went to OZ on a one year working holiday visa. To stay another year he had to work on a farm for 88 days. That's 88 days of work, so the farmer can give you work on a Monday and lay you off for the rest of the week and its counted as one day so it can take a while to do the 88 days. It rubbish pay and hard hard work but it forms bonds of friendships as they are all in it together and have all moved on together to Melbourne and working there.
In July '19 the OZ government is extending this. If you want a 3rd year working visa you do 6 months on a farm. My son is taking up the offer. I don't think I'll ever get him back
Anyway, they have other quite strict immigration policies for residency but for kids who are looking for adventure I think they have it right. It's hard work on subsistence wages but at least OZ knows they want to be there and will comply
We have met the enemy and he is us.