Responsive Template Questions

I am finally getting around to using the responsive template.

I am using v4.2.4 non responsive basic template.

I have noticed that when I activate a responsive template and click “visual editor” to edit template, anyone visiting my site will see the editor box and be able to make changes also. Is this normal?

Also, all of my settings with the menus, blocks, etc. are missing and have to be set up again. It looks like everything goes back to “Factory” settings. Is there an easy way to change the “looks & feel” back to my original? I have a feeling I will have to set up all over again, which is ok, but not if I have the issue stated above.

I can not find any good articles in KB to learn more.

Can anybody offer any assistance?