Nah, there is visible difference between trading and gambling. Gambling where house prevails at large though a very small number of people still succeed to make some money. Trading is the area where many indicators can be gotten through various tools to understand the trends and markets. Risk is in both but gambling is not better in no way than trading.
Yup the risk is same in both method, but the success rate is bit high in trading. In gambling, very few people can success those who are lucky they will make a profit and the remaining players will end with the loss. But I trading the success rate is bit high if you know the market and you know the right place to trade you will make a good profit. So trading is a better choice.
I think risk is different between gambling and trading. It does not matter how many succeed or failed in each category. What matters is the factors that can mitigate or nullify the risk involved in each ventures. We all know that in trading, there is this risk management that can be applied to lessen or nullify the risk involved in trading investment. Another thing with trading is the outside factors that can affect the trend of price of the trading stocls. Traders can then study this factor and successfully predict the movement of the market. While, gambling solely rely on its system setup. No outside factor can change the result.
You can argue with sports betting here but the fact that when your team lose, you lose all your bet, unlike in trading you can lessen your lost by simply selling your stocks at a lower price. In trading, you can recover parts of your investment when the trades is unsuccessful while in gambling in every roll, it is always lose all your bet or double it (almost).