Of course it's a scam. Go on and find me a casino that gives you better odds than the house? Go on and count how many casinos in this board are truly provably fair, and not just praying on idiots to try their games that are more than likely to be rigged (even more so than the odds being rigged against you, which is simply a fact when it comes to all forms of gambling where you play against the house).
No, it's not worth gambling with your hard earned money.
All operating casinos have the same goal, which is to make a profit, so it is natural that the chances of winning owned by the casino are greater than those of its players. This does not need to be debated because in my opinion no one can change this other than the casino owner himself, I don't think anyone can have a greater chance than the house, this is very unlikely, even impossible.
Gambling is uncertain, so don't do it excessively by betting all your hard-earned money. Because when you gamble just for fun and it's your lucky day, you will go home with a profit.