For me I don't believe gambling will always depend on luck but sometimes. If you always depend on luck with your thinking everything will be useless then. You need also knowledge and skill to perform the luck that you have. I you really want to play a gamble with pure luck only go for lottery there is no skill required just pick a random numbers needed to play that game.
but for me, i believe that gambling is depend on my luck, if i am luckiest, then i can win the games and get the big money, but if not, i only get loss. i realize in every gambling games, luck is one thing that we should have but if we talk about sportsbetting, then beside luck, we should have knowledge. so for gambling, i will follow my luck to win the games.