So if you want to earn more money, you can do both things, the more, the merrier, if you are a beginner, then don't invest and trade significant amount of money because you may fail from it, you should do research first before doing that because it is not a simple thing, you should have an excellent knowledge and skill to be successful in both methods.
I appreciate your points still there are many differences in this crypto space compared to any other markets; those new people who are able to find the difference, they could get easy chances to make big profits in short period of time itself unlike any other markets.
Unlike any other market you may start investing into bitcoins from your day-one itself and you will never get disappointments as per what people are doing for last 10 years. At the same time trading bitcoin is NOT recommended from day-one. Yes, only investing is easier for good profits in this crypto space. People who are spotting this difference, might get big chances of their lifetime.