Without trading a real account and practice proper money management, it is hard for traders to trade with larger capital. With a $1000 account and a risk of 1% equity at $10, the risk is still manageable. But when they move to trade with larger amount of capital, traders cannot think rationally and they hesitate when entering positions.
Hence, it is a good practice to trade real account, always maintain a 1% equity risk. When your equity grows, your position size will progressively get bigger and you will be able to manage it well.