Australia, as I've got used to compared to UK where I grew up, has very strict on/off leash Dog area's

Inside a small, fenced, playground, is most certainly an on-leash zone

But, to your point, I am very wary with big Dogs and my kids regardless of what the government says owners should be doing with their Dogs 

 Oh, if it's not a dog area... Fuck that bitch and her expensive poop factory. 

 😂 😂 😂