It is true that the success of a trader is not how much initial capital he has.
Having skills and understanding trading strategies is one of the very basic factors to be able to support success in the world of trading.
Knowledge of the basics, strategies in trading and good self-management is a good provision to start trading.
Success in trading does not have to have large capital in my opinion, we will get success if we have extensive and good knowledge of trading capital.
Of course it all comes from experience. Even with a small capital, it is possible to have great success in trading.
So I think it is true that success will be achieved if we have good knowledge, experience and good self-control in trading.
Even if you don't have a capital of your own but as long as you have a good skill in trading, you can always borrow some or do pilot trades to be able to produce your own money. Success isn't measured on how one started or if he has a big capital but the result at the end will matter the most.
Big capital traders with less knowledge can lose the capital later on but small capital traders with lots of knowledge can grow their capital later on. Starting with a big capital do also have a bigger risk and I think many professional traders are still humble and down to earth. They don't get confident and use more money as their capital even if they have the capacity of doing so.