I think if new trader they only use small capital hence no problem use high leverage as long as only spent money that afford to lose, and they can control emotion properly, high leverage will useful to get more opportunity to open trades if they always use smallest lot size
Yes but i am afraid that they might loose their money and will write bad reviews against the broker they were trading instead of admitting their mistakes. Investments have their value, and every trader join forex with a dream of making it big either with small or huge one they will expect profit on it rather than loosing it as it was small amount.
Maybe you ritgt, with low leverage it will prevent from trade with take higher risk because to open order still need higher margin requirement, and it will prevent from greedy also because if they want to making new order might their free margin not enough to open new entry, and if eventually faced with margin call still will left equity on account