I wouldn’t recommend trading to anyone unless they have dedicated a lot of time to learning technical analysis and other skills needed for successful trading. It’s important to remember that trading is a very difficult and stressful job. I’ve read analyses showing that only about 10% of traders are profitable in the long run.
When it comes to Bitcoin a it’s much smarter to focus on your main job that generates income and gradually accumulate as many Bitcoin sats as you can
You are right, beginners make the mistake of focusing on trading without having something else that pays them, this is very risky. Trading isn't a real job and this is because the crypto market is volatile, at anytime you can end up losing your assets. This is why it's important to have a main thing that you are focused on, this would generate the capital you need to invest in Bitcoin or any other token that you choose to invest in