Experience is important in any area in life. You need to go through years of training and practicing to become proficient and professional. Trading is no different.
Professional traders don't rely on novice traders to make money. They rely on their experience, skills and knowledge. But experience gives professionals a better chance to succeed. Novice traders will make many mistakes as they learn and gain experience. This is exactly why we recommend starting with paper trading as you start your journey, and then start small. Prove yourself that you can make money with 10k account before increasing it to 50-100k. This way your mistakes will be less costly.
The problem is that most novice traders give up during their first year of trading. Instead of learning from their mistakes and improve, they just give up.