Is sun burn actually caused by Sun?

Is sun burn actually caused by Sun? Also can women stay without using face products? I don't go out. I'm always in my room. But they say this is sunburn. So what what does this mean that is I don't know. I'm not sure this is actually called sunburn because I don't go out. Anybody that knows me know that every day I'm in the house. If I go out in the evening alone, I don't go to work, I do nothing. I'm always in my room. But look at this. If I'm going out, I order a ride from here straight. I go anywhere I want to go. I come back back. I come back to my room with a ride. It means there's nothing like sun in my life. But look at my face. Look at my face. It's only last week Saturday and I went to town and I went to town. And when I'm going to town, you see things covering me like something. But see me. Sunburn. This one, it has been there for almost three weeks now. When I stop I stop using all my product. Now look at my face. You see my face? I just don't understand. This is so weird. It means men can live without lotions and face products, but women cannot live without face products. As I stop, if I should show you all my product, I've stopped using them. I don't use anything on my face. I just clean my face with wipes.