Prevent deletion of checkbox in sheet editable by many users

I am using checkboxes in a sheet (and their functionality in themselves are exactly what I need).

The problems I am having is that the users who are able to edit the sheet, sometime (by mistake) delete the checkbox instead of simply checking/un-checking the checkbox.

Hence, I want the users to use the checkboxes, but not be able to delete them.

Is this possible somehow?

FYI: it is not possible to use Google Forms in the case.