Worried about friend who wants to buy daytrading course for 3000 euro

I have a friend who got really interested into daytrading all of the sudden. She really wants to earn more money and sees this as a way to achieve it. I won’t say that no one can earn a living out of daytrading, but I do know that there is a very high risk reward, and I believe 97% of the people that try actually lose money. Note that I know very little of daytrading. She talked to someone online who is willing to coach her every week, but this “course” will cost her about 3000 euro. I might sound like a complete boomer, but I am afraid that she will make a mistake by buying this course, and it feels like a scam. I tried talking to her about it but she still seems convinced that it will work for her. Am I missing something here and could a course like this actually help her? I feel like trying to talk her out of it won’t make much of a difference. Maybe someone has experience with situations like this?