Is it really necessary to take a course before getting into trading?
no need for private lessons or lessons or anything. most importantly you have a mentor or professional trader ready to help you, and also you need to practice independently studying in trading forums to increase knowledge about trading. because in trading the most important thing is basic understanding, and learning can continue slowly
It will be a good advantage if you have someone to guide you who is a professional trader, at least you will be aware how trading works and how it will be profitable to you. However, its not really a must that you enroll into a paid course just to get ahead from others because trading itself can be learned through free demos from youtube and even studying all its basics from the forum. But never expect that trading can be learned quickly because it takes time for you to understand its concept and eventually, once you get into trading experiences, that's the time that you will learned it the most.