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Or am I wrong? I need to know if this advice is a good one or a bad one, I gave him this advice because we are very close and also because I will do the same thing if I am in his shoe, this is the best thing i can think of right now.
there is nothing wrong with that, because maybe your knowledge so far only revolves around bitcoin and you believe in it, so what you recommend first is definitely bitcoin. whether he accepts it or not is his business, the most important thing is that you can tell him about bitcoin and maybe he will be interested in investing in it. but if you can, you also have to educate him further about bitcoin, because after all he is a good friend and maybe the two of you can become business partners in the future.