Active lifestyle is more than just code, it is a legit precaution. Someone who practices an active lifestyle at 20 will still be in shape at 30 and 40 while someone who is thin at 20 in spite of a sedintary lifestyle will be quite fat by 30. There ARE men out there looking for potential wives/mothers and they definitely want to spare themselves the trauma of seeing their pretty little bride put on 10 lbs each and every year.