I would highly recommend starting trading with small money because having a lot of money in no way guarantees, that you will be able to earn more, in fact it will only increase the chances of losing more. But there is no need to take my words as a warning against trading with big money, both rich and poor can lose everything, just as rich and poor can earn, this largely depends on knowledge and understanding of the market and its manipulability, and not on the amount of money.
It's much better because we can control emotions a little when we suffer losses and trading with small money can also be an exercise to improve skills on trading. The structure of knowledge can direct people to trade in the right way while rich or poor is not a reference. Practicing trading capabilities will be much faster by trading directly but important things must also be learned first, I start trading with small capital and although now not a professional trader but more or less better understand how to do the correct trading.
The problem of dealing with trade risks by entering large money is not easy to control because that is better to enter a small money as a trading exercise to increase skills. After knowledge is getting better, it can be slowly improved the amount of money we want to increase and that should be that a beginner is involved.