I started with 100x leverage on market101 because I like brokers that offer high leverage (they go up to 500x). The reason was that I wanted to test things out and see how different leverage levels worked for me. At first, I kept the leverage low since I was just experimenting. As my account grew, I used higher leverage on new trades. I used this strategy and figured out what works best for me.
Yes, traders first need to learn how to make quality trades, rather than focusing on the number of trades, especially when many try to trade with averaging and without stop losses right away, setting the maximum leverage for this, which very often leads to rapid losses of all their capital.