why not try learning from videos on youtube? there should be plenty of videos you can watch to learn crypto trading and if you already have a financial background, it shouldn't be a difficult thing for you to learn. and apart from learning trading, it is also good for you to understand cryptocurrency security, there is a lot of information you can find regarding that topic on this forum or on google. wish you luck on your trading.
Maybe he wants to get a mentor or teacher or institution by teaching it according to the bitcoin trading learning module so that it is more structured in its learning, we see on yutube that sometimes the discussion is random, so I think like that, or in terms of trust and data accuracy if an academy he feels confident that what he gets is in line with expectations unlike social media influencers who are on average abstract in explaining bitcoin trading from start to finish, although I also don't know how effective learning in an institution that teaches bitcoin trading virtually, this will return to the OP of the whole.
The amount of work that is put into learning is because people do not want to lose money too much when they are trying. Think of it this way, the "quickest" way to learn would be losing money, wouldn't it be? I mean think about it, if you start trading today right away, then why would it take too long, you would trade, lose, and learn how you lost, and won't do that again and keep doing that. This way you would lose bunch of money, more than you should, but you will learn many ways not to trade.
This is not what people want though, they want to not lose money and that is why they learn from influencers, youtubers, blogs and so forth to get a better understanding of how it works before they start trading and lose less that way.