what is called a mistake is still a mistake, there is no such thing as rich or poor in my opinion, everything is a risk in gambling, and it is certain that even the richest person if they are addicted to gambling will definitely run out of all their wealth, there are too many cases like this, if they easily get money when they have lost everything, it could be a significant question where their funds come from,
For those who gets money easily literally gets it form their job maybe but then gambling is gambling and rich or poor is never a thing considered by the casino or even the gamblers, at that point,it feels like e everyone is equal and so they can literally be able to make he best of gambling if they use their opportunities and the casino is not going to consider if they a re poor or rich bot at the point of staking and at the point of paying out to those who won their games. When you gamble, it should be for the sole purpose of having fun or making money and not trying to distinguish status.
You are right that the rich or the poor do not qualify differently to play at the casino, but you should take into account their stability and daily activities or addictions. Most of the time rich gamblers try to avoid addiction in every aspect of gambling because they already have a lot of money but relatively poor gamblers often fail to avoid their addiction because they want to earn more money. So every gambler rich or poor should use gambling for entertainment purposes with limited funds and time.