Luck plays a huge role when it comes to winning in gambling especially winning in the long run. But you cannot depend on luck at all times that is why skills are also important. These two goes together, just like i said, to win in the long run luck is required and the reason why I'm saying that is because having the knowledge or skill doesn't guarantee Profit overtime it just increases your chances of winning
Yes, I agree with you , but you have to know in which games you should have that skill or where to apply it, because in roulette or slots it doesn't apply, there only luck works, another different thing is in games like blck jack and poker, there it's another thing, however there it also applies to have luck to get a good hand.