The "Cool S" or "Skater S" has been a staple of pop culture for generations. It takes the form of a capital S shaped out of singular lines, making it appear very stylized. Many fonts have been produced that allow for typists to type in a font similar to this. However, most keyboards and smartphones have the "Cool S" unavailable in typical ASCII characters. 

If §, ṣ̌, ß, ŝ etc. are available characters, the "Cool S" should be available as well, in more than just an emoji. This character has been present on every continent of the world since the 1980's and even before, and is more popular than ever. Allow the S its proper place on keyboards and in text format, create a dedicated character for it. Every language on earth has dedicated characters, what is the harm in adding one more?