It’s interesting you use the word “casino”.
She wasn’t gambling in a casino. She was gambling in what is essentially a pub that has a large room filled with pokie machines.
This is common across Australia, pubs have dedicated rooms (so called vip rooms) filled with pokie machines as they bring in a lot of money for the owners. Pubs are ripping out dining/general social space and putting in Pokie rooms.
It’s cultural to go have a pint and a bet.
She’s absolutely responsible for stealing but Australia’s obsession with Pokie machines and amount of Pokie machines is also problematic encouraging problem gambling. Pokie machines provide no benefit to anyone except the owners.
Not being Australian born the gambling commercials on tv was also eye opening.