There are precautions that someone should keep in mind while taking the 30-day sex challenge. It would always depend upon the couple. The couple may not find that sex is what brings them together. They may have other activities that bring the couple together. These would include maybe sports or other hobbies that the couple likes to do together. There are also health concerns.
Older couples may not be able to do a 30-day sex challenge based on their health. It would be necessary for all older couples to make sure that this is okay by their doctor. Also, birth control is not 100% effective, and there may be some unwanted pregnancies from this challenge based on the number of times that they had sex.