Humans need to get over their issues with gambling, but that's a whole separate topic.
Casino stations?
I like the idea, especially as a new location to visit. Even better, it offers other things to do in the game, which is what the game needs. Interacting with the same screens at stations does get old. New stuff can break up the boring stuff, making it less boring over time. Gambling adds extra excitement to the unknown. It could even be a potential side income.
Credits only...
Forget real money. Banking regulations alone are a nightmare, and across international borders makes it even worse, which is why making real money in video games isn't a thing. A few have tried, some have had limited success, while for others it's been rough. Just read up on the history of Entropia Universe.
MAJOR changes in the real world are needed for earning real money from a video game.
If it's not real money, but in-game credits, who cares? How is it any different than the game Monopoly? It's fake gaming with fake money.