I do not relate luck to gambling because it is so much evident that the games and odds in gambling (but odds betting) are programmed in a way that gamblers will eventually lose. Gamble more and lose is the reality. Win and do not gamble for that time wise decision. Also with the little amount of money I am using to gamble, it is like that because there is nothing like luck to me in gambling. Most people will lose while 1 out of thousands of people would win which are the lucky ones. I am not saying there is no lock in gambling but understand what I mean.
I understand what you mean, if the chances of winning is 50 50 then it can be totally attributed to luck but when the casinos have a higher chance of taking your money due to the house edge, that means that the luck is skewed to their advantage. If 100 people gambles in a casino and about 20 people wins we can't call it a fair luck so gamblers should use amounts that they can afford to loose to gamble. If gambling is not designed for the casinos to have an upper hand over the gamblers there is no way that they can make profits because they pay out more than the amounts that winners used to gamble.