Some gamblers wont waste their time to planning some strategy which in the end the startegy is useless, you know gamblers want to earn huge money in instant so rather put their time on strategy they chose to play non strategy games instead.
You are right about this :
1) Majority of gamblers are doing this casually. They already have other sources of income.
2) For someone, looking to make money with certainty in gambling, developing a strategy is very important. In fact, all the focus should be on learning initially. Some people are born with talent for this but with regular practice you can even bet them as you start realizing patterns and common mistakes of other players.
Is bankroll management also called strategy? Because i saw some professional gamblers do this, using "unit" to bet and i think it's a good strategy.
