Patience is what most gamblers lack. Most of them want quick results that is why they result to gambling as the key for their success. They want to get rich quickly through gambling making them lose control when experiencing some losses.
Most people don't have enough patience and they also lack of necessary discipline for success, hence most of them fail in education, investment, trading and gambling. I am sure that being disciplined and patient are very fundamental traits for success of all people who have to start from empty hands. They can not become self-made millionaires or billionaires without these personal traits.
They might not have it at beginning but they can learn and improve themselves for aiming at ultimate success.
A gambler that is playing without a strategy should not expect any return from his gambling habit, Luck will always be part of gambling but having a strategy can at least minimize their risk of losing money. Especially with sports betting, it has higher chance of winning compared to other games like slots or plinko if have a strategy like knowing how to analyze teams.
Strategies are important but they are helpful only for people who have required knowledge, skills and traits to execute a good strategy in practical conditions.