Background: I’m a 33-year-old woman. I’ve been using Robinhood to manage my taxable brokerage account because its interface and app are simple, modern, and sleek. I can’t deal with how clunky Fidelity or IBKR’s trading platforms are. My only concern is whether Robinhood is a reliable platform for long-term investing. Are they stable enough to still be around 20 to 30 years from now?