UI Text and My character Draw calls

Helloo!! My problem is.. as usual same problem of the other beginners​ which is DRAW CALLS xD I have lots of text in my UI canvas and all of that had same font and why it has 3 draw calls? I check it all and i see the 2 text component that adds draw calls.. Why it adds draw calls if it same values inside the text? How can i fix that..

2nd Character drawcalls.. My character is have 2 mesh 2 material 1 for the hair and 1 for the whole body, why seperate? Because the hair is changeable the mesh and material.. and its not end.. the max mesh and material of my character is 18 because it change cloth by changing mesh in mesh place holder of my character.. can you help me to reduce its draw calls..

Is the material adds the draw calls or the reasons why adds its because of multiple texture? I currently searching how can i pack my texture like sprite pack to manage the changing materials of my parts of costume of my character becuase i think it helps to rreduce draw calls.

Thanks hope to help my prob..