Anything can happen in the gym. Before our gym, some people drank and ran, but they didn't listen to the persuasion of the gym staff, insisted on running, and then slipped to the ground. Fortunately, nothing happened. This situation must stop! If you wear a hat, I don't think it's necessary to care too much about others, because you've been staring at them all the time and it's rude from the beginning. After all, you go to the gym to keep fit, not to see what others are wearing.
A girl who worked out with me before, she wore the normal kind of fitness, that is, the kind of fitness clothes with a tube top, while others wore sportswear. In fact, in many gyms, this style of dressing is normal, but maybe because we are a small county, others will cast strange eyes.
It may be because others are afraid that they will sweat too much after exercise and their heads will not be exposed to the wind, so they wear their hats, even if it is hot. It is also possible that his head was injured, or there are other reasons. There must be a reason to wear a hat. Of course, this may also be someone else's habit.
Actually, I think this behavior is normal. It's the same reason that you don't like to bring water cups when you go to the gym by yourself. But most people bring water cups, so do you feel a little different? Of course not.