No. You can trade stocks, options, crypto currencies, and other things with the majority of the best brokerage account for beginners. However, platforms can vary, so be sure you are signing up for one that provides the goods and services you want to purchase and sell. 

No, purchasing stocks isn't your only investment option. There's a wide array of investment avenues available. Apart from stocks, you can explore bonds, mutual funds, exchange-traded funds (ETFs), real estate, commodities, and even cryptocurrencies. Each investment type carries its own set of risks and potential returns, so it's beneficial to diversify your investment portfolio to spread risk and maximize potential gains. If you're considering delving into cryptocurrencies, it's advisable to seek guidance from experts like Consulting24, specializing in Crypto Regulation & Licenses, to navigate this specific investment landscape effectively.