Stupid Apple, How to Set Default Text Encoding to Unicode (UTF-8) in Mail.app!?

Stupid Apple!!!, How to Set Default Text Encoding to Unicode (UTF-8) in Mail.app!?

TextEdit Application set Default Text Encoding = True

Any other Mail Application set Default Text Encoding = True

but why you think, what in Mail.app don't need this function?!

Where is minimal Apple design, one button press to work!? Why every time I need go to Message-Text Encoding-Unicode(UTF-8)?

Please, write How set unicode(utf-8) as default