Numerous criticisms have been made against the WPATH-SOC over the course of its history, some of which are reflected in later versions of the guidelines. Most of these criticisms are related to the strictness of the requirements, noting that the rate of post-surgical regret among transsexual people is very low — lower than many medically necessary and cosmetic procedures with less stringent requirements. Provisions related to the necessity of real-life experience (noting that requiring real-life experience in an incongruous anatomical/social role can be both mentally harmful as well as physically dangerous to the individual) have been particularly under fire. For many, it is safe only to express gender outwardly in limited settings (8/7, 12/7 or 18/7) rather than all day, every day (24/7). This is now taken into consideration in version 7.