Robinhood’s big gamble 5 years ago
Signing up for options trading with Schwab or Fidelity requires filling an application including a survey about derivative products and your experience with each type of offering.
Vanguard is even more difficult. Application for a margin account requires mailing in a notarized form.
Robinhood makes it easy in order to profit off inept traders that have no business making these types of trades.