When you use leverages, you become more greedy and it's same with everyone. Each person has own risk acceptance and risk management so using low or high leverages, it's personal choice.
My main point is using high leverage with small capital likely results in False Safety in mind of traders. Practically, if you open a bad position, and don't close it proactively, it will be liquidated and it's false thinking that a small loss is not a loss, and many small losses over time won't sum up to big net loss. It's False belief in leveraging small capital.
Futures trading is the easiest but hardest way to make a lot of money in less time, with little capital, because that is the purpose of leverage. And yes, it's quite tempting, because you must control your greed, otherwise, the chances of losses are 96%. The odds are against you, you just have to turn the tables, understand the market patterns and you will start making money.
It's recommended to start with little capital, because when you are inexperienced and start with losses, those losses will not discourage you so much that you give up, over time, you learn to make better entries within your risk management.