Your friend asked you about Bitcoin, which means he already has little knowledge about it. You have done well by giving him the guide on how to acquire Bitcoin, but there are a few things which you did not mention here that I consider important if you want to be honest with any investor.
I hope you did not forget to tell him about how profit is not always counted; sometimes the market can be against him, and he will see his capital reducing and how to react in such situations. And I also hope you did not forget to educate him about the importance of security in his holdings in order for him not to lose it to hungry scammers.
Everything you've just said is true, when explaining things concerning Bitcoin investment to newbies you ought to be very specific and help them understand in details what they're about to embark on so while telling them the advantage of investing on it, you ought to let them know the possibille threats they might encounter that would hinder their investment.
Newbies don't need to learn everything at once but they ought to understand the basic stuffs which involves how to buy, where to buy, how to secure their coin, and where to secure it, then along the line they'll learn how to be consistent, how to take advantage of the market etc however helping newbies understand the basics is very important.