For beginners, it is risky because they still have little knowledge about the reliable websites and campaigns to join to. They are highly at risk when it comes to scammers. Also if they don't know the analysis of the values, they might end up investing at a bad time. The least they can do is to ask the ones who already joined in crypto and have already a long time experience. Also, search as much as possible about crypto related topics like how the system works and how to see if the websites you join to is reliable and trustworthy.
As a beginners we must be observant and creative in things we want to join and have less knowledge about it, but risk is part of success as long as we learned from our mistakes and ready to bounce back and willing to fulfill our goals and objectives in crypto world.