Hi Popi...
All I can tell you is that in Brisbane Berry-producing cultivars should be avoided because of their weed potential.

No idea about NSW though..

I suppose it might depend on where you live. I'm in Southern Tablelands, have two large and mature clumps which produce lots of berries. I have had one seedling come up randomly in a pot of something else, had no seedlings from intentional plantings, and have no identified seedlings pop up in my garden.