Yeah, there is no way you can teach someone what you don't practice, this is a very important point to note before venturing into Bitcoin or any other investments, this way you have a good understanding of their investment in the long run, because at some point, you as the teacher have to get a result to show your mentees...
Bitcoin has a unique advantage, and that is, the ability for anyone to hold Bitcoin easily and fast, with a secured wallet balance, or that, you can first buy Bitcoin and hold it in your wallet then after go after the knowledge process.
If we don't have results from the investments we make then the people we will teach will not easily believe what we teach, so it would be better for us not to teach other people before we have good knowledge about the investments we make and have also had results from them. the investment we make, you are right, everyone can of course learn Bitcoin because if we have capital then we can buy and store it and must store it well in the wallet you use.
There are things people don't have to see before they believe, in Bitcoin investment only the way people are talking about Bitcoin one can easily believe or imagine how it can work out fir them, although, I have seen some good people that have benefit from Bitcoin investment or even Bitcoin trading, however I am not a Bitcoin trader or even have a good feelings about trading but am just trying to say that Bitcoin can speak for it self when someone have interest in it.