A good trader always chooses the small lot size because this is the biggest mistake when we start to trade with a big lot and that's why we become unable to manage our trades just because of the big lot.

Small lot size trading, particularly using micro (1,000 units) and nano (100 units) lots, is a fundamental feature for prudent risk management in forex. It allows traders with limited capital to participate in the market without overexposing their accounts.

This approach is ideal for beginners to practice strategies in a live environment with real, but minimal, financial risk. It also provides experienced traders with unparalleled precision in position sizing, enabling them to fine-tune their exposure to a specific trade or market condition. By trading small lots, individuals can protect their capital, manage volatility more effectively, and ensure that no single trade can cause significant account damage.