The only similar practice that comes to mind that was eliminated (as far as I know) was Chinese footbinding. From what I gather, there were two forces that made the change. One was Christian missionaries who called the practice barbaric and noted that other countries thought less of China for engaging in the practice. The other was Chinese reformers, who pointed out the benefits of women not binding their feet (better health, more able to work).

Unfortunately, I don't see how this model could work for transitioning. In their mind, anyone who takes issue with the practice is an ignorant rube at best and more likely a hateful bigot. Those who point out any health risks are ignored.