Is it dangerous to wait and do nothing about warts?

Depends: What kind of warts? Most warts are due to HPV infection and go away on their own. Warts in the respiratory system may require action. There can be tumors that look like warts and should not be ignored. It would be prudent to consult your doctor for an evaluation. Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.

Wouldn't think so: Warts, if they really are warts, are triggered by a family of slow growing/skin surface invading viruses. Their ability to remain near the skin surface & avoid immune actions from blood helps them remain for long periods. Most strains will self clear over time. When their position is bothersome, like on genitals or vocal cords people often have them removed. Wart don't turn into cancer.