The old ones still need to mingle and associate themselves with the society and traditional casino is one of the places you can see them in. Most of them are doing it for fun, because they are already old and understand gambling better.
There is no where that there is no vulnerability because we are humans. I saw an old man in one of the traditional casinos, I do go to and what baffles me is how he watches the game with full understanding, but he only bet twice and that was all.
They are old enough to think that gambling gives them luck, but what they are doing is just spending their time with their friends and remembering the past. Once we are a gambler, even growing old, gambling still appears in our minds.
Personally, gambling is not bad as long as we are doing this not for money alone. We see some old guys out there gambling, but we can't see the stress in their faces unlike how young gamblers acted when losing. Their showing up in the casino helps promote gambling positively.