Humans survived without dental care, anesthetics, antibiotics, regular bathing, deodorants, vaccination, pasteurization, etc. for most of their existence. At least some humans. Now, people are free to get as close to the stone age as they like, but I like my civilization, thank you very much. When my teeth hurt, I don't bash them with a stone and don't drink boar's urine, I go to the dentist, where she fixes my problems under anesthesia. When it's too hot, I turn on AC. Yes, it is a luxury, as most of our civilization is. And I love it.