I understand some of this talk in other words it may be quite impossible to earn $100 per day but losing $100 per day in gambling is certain.
depending on where they bet and whether he has the knowledge and strong commitment to manage his finances so as not to lose too much. as I know if betting on sports betting like it is possible to get a definite profit but we must remember that sports betting there are always unexpected surprises and sometimes betting on the underdog is not guaranteed to win.
and conversely, betting on casino games plays longer as there is a guarantee of getting a big multiplier but we also have to remember that the house always wins.
from this problem we can know whether the mind gets a daily profit of $ 100 is it still possible?
The first thing that we should do is to pick up a legit casino because playing on a scam site will only make us lose our money. There are many legit casinos, but it would be better to pick up the ones with the best bonus offer as it can help us in our journey. Choosing the game that you know the most does help too.
This is not about a legal or fraudulent casino, but about the fact that in any casino it is easier to lose than to win. In this, I agree with @len01 that a scenario with a daily loss of 100$ (or even more) is 99% likely, and against this background, a daily profit of 100$ looks unattainable.
Lastly, once we achieve our target profit for the day, we must be able to control our selves by withdrawing our money and not playing for the rest of the day. As for the games, sports betting and casino games has their own advantage and disadvantages. Aside from the comparisons that you made, I also find casino games more fun so I prefer it but for someone like the OP who prioritizes profit, sports betting can be better for them.
Controlling yourself, withdrawing winnings on time, and so on sounds good only in theory. In practice, how many can boast of this? Most gamblers will behave like inveterate gamblers and will not be able to stop at the right time, which will lead them to lose not only the prize money, but also the deposit.
Casino games are a fun way to spend money, not a way to make a profit.