I use myself as an example, be for I started to acquire knowledge about Bitcoin, I first bought some amount of Bitcoin and held it in my personal wallet, not an exchange wallet, and I had my wallet keys properly saved, and after that, I became more active innthe forum and reading comments and posts and doing other bitcoin related research, and that made it easy for my to accumulate more bitcoin while studying, and this has helped me in much greater ways and I thought it could help others here, most especially newbies.
So if you have the money to buy some Bitcoin, why not buy first and thereafter learn along the way and keep practising the few things that you learn, e.g DCA approach, this approachable helped a lot of newbies to be able to have the right mindset and accumulation approach towards bitcoin, and they can accumulate a good amount within a short space of time, and also building a sustainable knowledge that helps you to have a better understanding of the market and to make good analysis.
Actually I don't think is advisable for someone to invest before learning, is very risky what if you're holding the wrong one maybe after acquiring the whole knowledge about crypto investment then you realize that you invested on the wrong coin what will you do? That is why is very good to have the knowledge about bitcoin investment before looking out to invest. However advising a newbie to invest before learning I think is not advisable, for the fact that this method favoured you does not mean that is going to favour others so you don't have to give such advice, most of the newbie after reading this thread they can decide to do exactly what you said thinking that is a nice idea because they don't know how the market is.
Also with the fact that having adequate knowledge and understanding will help you as an investor to make better choices and bitcoin can give you the chance to learn along.