Can I buy directly from Binance?

I'm considering investing in cryptocurrencies, and Binance seems to be a popular platform. I'm wondering, can I buy cryptocurrencies directly from Binance? Or do I need to go through another intermediary? I'm also curious about the fees involved in buying on Binance. Are they reasonable, or should I be looking for cheaper options? Additionally, what about the security measures on Binance? Is it a reliable platform to buy and store my cryptocurrencies? I'd appreciate any insights you could provide on these questions.