I used to play lots of flight sims and because of the limited FOV I tended to rely on instruments as well, nevertheless when I started flying for real, I was once plotting some course on the map while being in a traffic pattern (I was only plane there, so nothing to worry about), and for a good minute or two I have not looked outside of the window not checked the instruments... well, I was not flying straight and level when I looked back up. My instructor was paying attention so that we do not crash, but he intentionally left me to see if I can recover and to help me really learn the hard lesson of you cannot trust your senses while flying. I was well aware of that at the time, but I did not know how much my senses were lying to me. Everyone should learn that lesson imho, not just the pilots. It is such a weird feeling when you think you are well aware of the situation, you look up, and you see that the reality is quite different.