If someone which follows the set of rules and be discipline enoff. Can people make 50-100 $ a day just gambling in online casino.....?
Anything is possible...so
yes, it can.
No, It can't be because gambling created to the creator to make a profit of his/her own. It is favorable for those people who manages the gambling. Maybe you can earn profit but it will not be longer. Gambling created just for entertaining.