You have done well in going deep to talk to your friend who wanted to invest in Bitcoin but find it too complex. In as much you spoke about no need of having much but they should be aware of the risk involved because it is an investment and as well, they should know about their investment approach. Only a well approached investment can yield good result.
Every successful investor you see today followed a well detailed approach investing to achieving the level of success they are today. Choosing a strategy is not that difficult or complex as well it's just for them to understand each strategy and how it works. Know the pros and cons and they are good to go.
Sometimes our approach towards investments could be our greatest fall because when you have a predetermined negative mindset about a certain investment, you definitely will approach it wrongly and may possibly make mistakes you may have to learn from the hard way.
Concentrating so much on the risk alone is very risky because you become very indecisive thinking about the risk and sometimes end up missing opportunities which would have been more beneficial to you because much of your attention was focused on the risk. Bitcoin no doubts has it's risk associated with it but equal have a proportionate reward that is worth the risk so it's a very healthy risk especially if you systemically approach it with an outlined strategy and staying disciplined enough.