Images in public/ vs resources/assets/

I saw various app`s storing design related images in public folder and according to https://laravel.com/docs/5.4/structure#the-public-directory it's correct.

Public folder is "contaminated" with files generated by mix and at some point its hard to say which files are generated by mix and which ones uploaded by developers, so I prefer to keep images in resources/assets/.

Is there any reason to not keep images in resources/assets/?