Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

Connection between gambling and trading on stock/options/Forex markets
There is economic value added to the marketplace, by having many investors trading stocks. The stock market itself can be thought of as a tool which provides additional 'liquidity' to the marketplace. Liquidity is the ease with which you can convert your assets into cash (for example, how quickly could you sell your car if you needed money to pay a medical bill?). Without a stock market, funds would be very illiquid - an investor would likely need to post advertisements to have other people consider buying his/her shares. Until the match between a buyer and seller is found, the person with the shares can't use the cash they need. On the other side of the transaction, are people who have an appetite for risk. This means that, for various reasons, they are willing to take on more risk than you, if it pays off on average (they are young [and have many years of salary earnings in front of them], or they are rich [can afford to lose money sometimes if it pays off on average]). Consider this like a transaction between your insurance broker - you don't want to pay for a new car if you get in an accident, and you're willing to pay total annual premiums that, on average, will cost more than that same car over time. You don't want the risk, but the insurance company does - that's how they make money. So by participating in any marketplace, you are providing value, in the form of liquidity, and by allowing the market to allocate risk to those willing to take it on.