Just going out and flying around in your MSFS "airplane" is essentially like flying a real airplane with no instruction. You don't know what you are doing wrong and the danger of picking up bad habits is high.
I very much agree. Added to that, consequences. Like watching cartoon, where no one ever seems to get hurt, you crash your sim a few times, and it begins to seem routine, and meaningless.
Good instruction will give you the tools to learn safely and effectively, and crash free. So, for those who would launch off with little or no instruction in a real training environment, set yourself this standard. If you ever crash the sim, you don't fly it again, until you have passes a flight test. That should inspire you to seek and achieve the appropriate training.
Back in the day, I had "look the other way" virtually unlimited, access to the airline's full motion simulator. The only condition, If I ever crashed it, I never flew it again ('cause I was caught). I never crashed it! - Consequences!
Piloting an aircraft is a real activity, with severe consequences for inadequacy. Treat it with real respect, even if you can seem to participate on your desk.