Sure, according to many statistics up to 90% of traders lose their money, so 10% of the market can accumulate capital, but that is already a big difference when you compare trading to gambling, don't you think?
Where do you get the stats?
Sure, the traders should get a loss, there is no a perfect trader. But it doesn't mean the trader fails, right?

In gambling, people also lose money. But in trading, there is a bigger chance to get back the money or get profits.
In the case of gambling almost 100% of gamblers are doomed to lose their money in the long term, that is at least 10% worse than trading as an option to profit from speculation and randomness of the markets.
Yes, gamblers lose their money. They may win some prizes sometimes, but they probably tend to lose money as a whole. It is why that gambling isn't a proper place for earning money regularly. Gambling is a place for fun, we mostly gamble for getting entertainment.
That being said, I have never need a successful trader, actually I have lost money, so I am sadly for now among the 90% who loses their money in the short term.
Yeah, it is difficult to describe a successful gambler. Mostly a gambler lose money, gambling is a place for spending money.
