Stock market/crypto exhange

I believe on top of being able to gamble/scratch offs we should be able to have a more educated gambling via trading in the stock markets with tablet or phone, this would give players a way to truly invest their hard earned cash and have fun while doing it. Being a full time pd officer we dont have much time to be working jobs in city and would like other means to make side cash, this also goes for legal players that do not choose crime, could also be intresting to maybe implement it in a way that if you have a criminal record you cannot trade stocks to make it more limited and have it for an actual job for people in city.