Unfortunately, since gambling is only recently more accessible/prevalent, I think it's going to take a few mishaps to produce similar regulations.
> pattern day traders must maintain minimum equity of $25,000 in their margin account on any day that the customer day trades
> pattern day traders cannot trade in excess of their "day-trading buying power"
> If a pattern day trader exceeds the day-trading buying power limitation, a firm will issue a day-trading margin call, after which the pattern day trader will then have, at most, five business days to deposit funds to meet the call.
Poor people who trade their grocery budget for gambling undeniably cause trouble for a population. Do rich people who trade their luxury handbag budget for gambling equally cause trouble for a population?
> Day trading, as defined by FINRA’s margin rule, refers to a trading strategy where an individual buys and sells (or sells and buys) the same security in a margin account on the same day in an attempt to profit from small movements in the price of the security.
(emphasis original)
There are no restrictions on trading with your own money, whether you can afford it or not.