Proof if proof needed of the complete pointlessness of casino gambling. Some people will still do it even when they know they can't win anything.
Some brokerages are more strict, but plenty just let you check boxes.
Of course you can still lie but legally there is a line.
If you had to take and pass a test, that might filter out more people; although I'm sure the seller would help you pass the test, so maybe not.
its purpose is simple. if you lose the money of sufficiently powerful people, as a middleman, the standard exposes you one more kind of legal jeopardy.