Wallet is secuirty is very important thing that one should learn as deep as possible but can we expect them to master wallet security and all kind of possible scenarios and how to avoid them without having any bitcoin yet for themselves?
We will have the motivation to learn only when we have the actual bitcoin to keep it safe, so it is okay to start with little to no knowledge of what is bitcoin wallet, but once they bought their bitcoin then next step is to learn about the wallet and very first thing they should learn is exchange is not a place to keep our bitcoin at any situation.
Why should someone be in a hurry to buy bitcoin without first of all learning how to secure the Bitcoin? I know some people will be like, what is the point of learning how to protect something you have not acquired? Now let's assume you went and buy bitcoin from a centralized exchange, and then send it to self custodial wallet and end up losing access to your wallet permanently because of one common mistake you made which you could avoided assuming you first of focused on learning how to protect your Bitcoin investment and common mistakes that can lead to losing access to your wallet permanently. It can make sense to buy Bitcoin without knowing knowing how to protect it, but it's very risky if you ask me.