This is a warning to newbies and a reminder to old members that they should not leave their coins in an exchange. Some old members would not learn from other peoples mistake but they will want to learn from their own mistake.
Very good advice OP, In crypto or any online payment system we have to be very careful and we should do all necessary step which needed for security. Most of the old members are very careful but yes there are some old people that are still so lazy and didn't learn from other people's mistakes.
Exchanges are used by traders for their daily trading and as a newbie, you shouldn't jump into trading until your have learnt the fundamental analysis and technical analysis to your proper understanding and also have learnt how to read charts, this is because trading is very risky and a newbie with zero knowledge on trading will end up losing all his coins. You should see exchange as a market place where you go to buy and sell and when you are done with whatever you went for in the market, you take your goods home because if you leave what you went to buy or sell in the market it will be stolen in the market.
I think newbie should start investing with low money after learning some basic skill because one can learn in more proper way when he experience practically and most of skill only could be learned when we lost or win like emotions control and many other things. Investing small is best choice for this purpose.
See exchanges in this same way and whatever that makes you to use an exchange, when you are done, you should not leave your funds in there. We have seen big exchanges like FTX crashed and the whole thing is still a drama currently. You should only leave the amount that you can afford to lose in an exchange and don't for once risk your bitcoin. This is because exchanges are in full control of your bitcoin and they will decide what happens to your coins the moment you keep it in their custody.
Keep your bitcoin safe from third party.
Not your keys not your coins.
Let's discuss.
I will prefer CEX only when we need to do daily trading or use fast fiat to crypto exchange or vice versa otherwise holding a token in Exchange is so risky. The best place to store wallets is an open source wallet where we have full control over our own funds