If you are only using child theme for css codes, I suggest you to add them in Theme Options -> Custom CSS and not to use a child theme.
If you need to override and modify templates, then you use a child theme.
I was one of the developers for this theme when I made that comment.
I had since step down as developer and only worked as support technician in this forum.
Therefore, I do not know if child theme works properly with Evolve theme now.