I think most fail because they don't start with a lot of money in it. If someone had 100-200K off top, it'd be kinda easy, imo. They could just buy blue chips and eat.
5% off 100K is $5,000. You could get that daily off SQ alone. That's more than most people's monthly salary.
If you're strictly dealing with pennies, it's really tough.
That's exactly what it is. It's all about how much money you have to flip in the first place.