At least one of my strategies have no risk at all, I can easily do 30% a year no problem. Which is about what Warren Buffet does.
So if you know what you're doing this is very far from gambling.
Problem is, who wants to do 30% a year ? More you want to do, more of a gamble it becomes.
True, everything in life is a gamble; esp when it comes to money. No risk no reward, if you don't play, you won't get paid. If I took 10k to a casino and expected to return with only 5k net, for me, it wouldn't happen. Why, cause casinos are pastime PLAY, if you do win big, coolers make sure you give back at some point. Trading is an art, and it has it's risks as with anything else. The market has no mercy, it don't care whether you are successful or not, the market is not there to take your money, it's just the market.
The difference being, you control your trading, win/lose, more so than with casinos.
I'm sure there are varying opinions on this, but for me, trading is an investment first, not a lotto/casino. Just like with Demos vs Real accounts. Most investors looking to recruit traders, look for profitable Real accounts cause it means they (traders) have a vested interest with their own money enough to take a chance. I have a real account also, and it's like a mirror of the one here for testing purposes, not something for fun to go ape, guess, play the luck and hope for the best.
I have traded for others based on a demo accounts for demonstration of what can be, not what if, and real accounts just the same. Don't blame investors for needing a real verified vs demos for business opportunities, used properly, demo accounts are a very valuable tool, not a casino game, for custom test purposes when used properly.
In closing, the only things in life you really regret, are the chances that you don't take!
'Live the dream'