In general, this will not affect the economy in any way, because the only plus is that a new tax item will appear for the state, and several new jobs will be created. But at the same time, I see many minuses. For example, scammers will call people and try to steal their money. I also think that lawyers will have a lot of work because of the holes in the bills regarding this area. All this is complicated, but I can definitely say that trading will not create a global revolution in the economy. Although, perhaps someone can get rich this way
Yeah there's a possibilities that someone may gain a lot and change their lifestyle after, but there's no assurance that even there's proper education about this veneu those who will involve themselves inside will benefits, trading needs to be understood well, a win or an earning for someone who managed to timingly place their investment while losses to those who mistakenly anticipated the market movements.
This also cannot be separated from looking at the data, meaning how many valid data are there now about people who can change their lives from trading and how many people fail in their trading, I personally have never seen valid data, but if there is, it can be shared.
Now, don't just look at someone who is successful, but compare it with how many people fail. I agree that this creates jobs or at least new sources of income, but to achieve something that big is that easy and will require a long process.