It's true man cannot learn in the whole life.because there is no end level of learning any field. Same as bitcoin has also no end level of learning. We should be much more gain knowledge about crypto. So for getting good results of earnings through crypto will be profitable in future. I think so.
You are right earning from crypto like bitcoin is the most profitable way of earning. We should learn it well before using we must collect good information about it. We get experience about crypto by using it just like having it and ufing to buy things and to earn from bitcoin we should follow only one rule that is sell it at high price and buy it at lowest price so this way we can make good income from bitcoin.
But there is a big challenge for people who want to try to earn from bitcoin. The chance will not be too big if he doesn't learn more about the ways, so he will not be able to earn many bitcoin. Maybe he needs to spend more time to learn from many sources so he can improve his skills and knowledge about how to earn more bitcoin. It is hard, but it is worth to try because so far, not all people know bitcoin, and not all people use bitcoin as the investment, and they are still preferred with the traditional way.