Is there any perceived luck which is not personal when we talk about gambling, though?
Also, I don't believe in luck as it is known traditionally, in general we all build our own luck with our actions and the choices we take each day in our life. Nevertheless, there are some very interesting and baffling cases in which a single person managed to beat the chances and that a long streak of wins in gambling, to the point casinos had to ban them.
There have been also instances of people winning the lottery twice, and there are also examples which have nothing to do with gambling, as the Indian-British man who survived that recent airplane crash in India when he was going back to the UK with his family. The was the only survivor.
So even though you don't believe in luck, you gotta admit there are people who beat all possibilities and we could tag or categorize as "lucky".
In last few months I watch too many threads related to luck and gambling with mostly peoples believe in gambling luck is always powerful act but still I am also in favor anyone can change his luck by own, but it's not for all and easy.
You have nothing to prove this because it's not possible, but things can take changes as you mentioned many banned by casinos just because of consistent wins It's happen just for one or two in thousands same apply in lottery just one or two in decades able to won consistently mostly depend on luck.
But still any person can bring changes by his own because its nature of human to do things which looking impossible so it's also possible in gambling but still luck is always involved in this because without luck its never been easy to won anything from gambling.