I just passed a few of them in 2 Westfield Malls in the metro today.
I wasn't interested with the babies but was looking at the equipment they used.
Nice mini studio in that few square metres of space in the middle of the mall!
They must be doing a good business as I never seem to see them stop swipping the remote Merchant Card Facility from streaming customers!
The crew are very young and mostly female, and they seem to know their gear and stuff very well! Good on them.
Another business idea to venture into, to areas not yet reached by this service.