trading doesn't have to require a big budget because if we do a good trade with even a small amount of capital we can get a big profit too, so to get big results it depends on how we run it
Yes it is ability of trading that we can start with miner amount too but for this we will only have to wait for right time to trade then, if a person trade for long term with small amount and the other trade with high amount day without experience will suffer more risk than the fist person who is trading with small amount of money for long term.