Rich indicates you have healthy amount of capital to manage your trade right? Actually if you have money then it will help you in many ways during trading. For example if you mistake in your technical analysis and loss your Capital, then rest of your money will help you to take another trade and recover your loss. But if you don't have healthy capital, it will be hard for you to restart and recover your a loss. But that doesn't mean without healthy amount of capital, you can't trade! You can start with small amount too but of course in spot trading. Otherwise your account will be zero for your one mistake
However more money or larger capital doesn't equate profitability. It just means that you have more to risk in the market and with the minimum leverage you can last long enough in the market and be able to predict future moves. Which means, you don't need more money trading. You just need a system to trade consistently and risk management to be able to last long enough in the market.
It's true that you can start in any amount. You can even start with zero using paper trading account and still be able to participate in live markets.