TRADING is not something anyone rush into because it's paying people, its something you sit down, read and understand and also learn by doing. To trade furures, no good trader will tell you to jump into futures trading with a small capital and high leverage , to be a good trader you need discipline , the same discipline you apply to a 10$ account is what you should apply to a 10k$ account.
That's why we said that trading is not for everyone, because it really takes a lot of preparation not just financially, but you need to be mentally tough as well. Can you take seeing negative in your account? Are you emotional trading? So you need to have discipline and learn to control your emotions, you shouldn't trade with your heard, but used your brain to make logical decisions.
I agree on the point that when doing trading you must equip yourself not just financially but also mentally as well as physically because all of those are correlated with one another. (1) Financially stable in a sense that when doing trading, you must have your own fund to use and not a borrowed one so that you will not feel any pressure that you must earn on an instant to be able to pay right away the capital you have borrowed to get started. (2) Mentally because trading will challenge the way you think and perceived regarding your trading strategies and how you can be able to cope up on the changes happening in the market that can affect your trades. In mental strengthening, emotional handling comes in because if you have a stable mental perception this is when you can control your emotion not to drive your decisions with impulse because of what you just feel in your emotion. (3) Physically in a sense that upon trading you must also strengthen your physical aspects because there might be times that there will be sleepless nights for you do not want to miss any opportunities on the volatile market that can be favorable on your part.
With regards to not all people are capable on doing trades, actually for me all are capable it just so happen that they still do not know how to do trading but if they will study to learn and understand how it is done, they can still do on trading. It just so happen that we have already know how to trade which makes us capable to trade on which at the first place we also started as newbies. If we have done that to reach this point, then other people starting can do it also. Just do not rush things and make time for learning before engaging.