I encourage you to take him to the forum where he can find useful information to start his bitcoin investing journey. But honestly, you shouldn't be in a rush to give someone investment advice. You are new to the market, so you do not have much knowledge about the market, and giving advice to someone is risky for both of you. If someone wants to invest, refer him to the forum or anywhere he can learn about bitcoin, and if he invests or not, let him decide.
You are right, He should provide reference links to forums to learn crypto knowledge, we already have various threads for beginners to know bitcoin and it is very useful for him to explore the basic knowledge he should learn before investing. However, I appreciate that the OP has tried to introduce bitcoin to other people, it's just that you have to increase your knowledge of crypto investments and also have to study the risks of investing so you don't worry about the impact of market fluctuations and you can manage your investment portfolio properly.