I don't agree that wisdom teeth shouldn't come out. I have a small mouth and had to have 4 teeth pulled just to make space for the necessary teeth I had before I got braces when I was younger. My orthodontist at that time told me and my mother there would be NO room in my mouth for wisdom teeth, that it would be necessary to have them pulled. Fast forward a few years later when I was an older teen who thought she knew more than an educated orthodontist and decided for herself that having wisdom teeth would be cool, surprise, surprise, I didn't have room for them and the darn large teeth pushed my perfectly straight teeth outward so that I needed braces yet again but when I was adult.
I had mine pulled when I was 20 years old. Yes, it hurt. I opted to not be completely knocked out. They numbed my mouth and gave me a gas to semi knock me out. I was aware of everything, heard everything going on, felt everything but the pain, and it was actually quite traumatic for me. Not everyone swells badly but I was so swollen that I could not open my mouth, had to eat strained baby cereal and fruits because it hurt too much to chew. I was miserable. But then you have my husband who opted for the same procedure I had, did not get completely knocked out like me but he hardly swelled and went to work the very next day. Everyone is different. So, yes, I do believe they should come out and most people have wisdom teeth that become rotten and need to come out because of that as well.