What is the benefit of financial intermediary to a private investor?

Financial intermediaries, such as banks and investment firms, benefit private investors by providing access to a diversified range of investment opportunities that they may not be able to access individually. They also offer expertise in managing investments, reducing the risks associated with market volatility through professional portfolio management. Additionally, intermediaries facilitate liquidity, allowing investors to buy and sell assets more easily than if they were dealing directly in the market. Overall, these intermediaries help optimize returns while minimizing risks for private investors.