There is absolutely no way to earn real money by gambling on a demo account. this is for training only. but nowadays people who are interested in gambling are so panicked that they don't feel any need to use demo account and they jump to gambling with real money. And on the other hand, gambling platforms often refrain from having demo account options. Because it is not used by many people now, on the other hand it creates a stress on the platform's servers due to which the site may slow down. However, forex trading platforms have demo account options.
casinos profit thanks to people's losses so it doesn't make much sense for a casino to create a demo account for people, as no matter how much that person spends months practicing at the end of the day when that person puts money in the casino that person will lose money, It is something inevitable that happens, and we see that professional gamblers or so-called betting gurus prefer to keep creating youtube channels and earn money with their youtube channels, sell books, give courses and other things but do not earn money playing, probably they don't even play
they lie to their followers talking about predictions and how they think game x or z will end, but they don't show who they bet on, whereas in forex the owners of forex sites profit from trade fees from the buy and sell that each person keeps doing it for the forex site and it is more advantageous to teach people how to trade so that people do not give up on the trade, hence the reason for placing demo accounts, this is the difference between forex and casinos. now when you count the number of people who were lucky to win a lot of money the casino is ahead of forex, lottery players are always the top winners in history