I will not comment and whether it is acceptable for a someone without diabetes*: I will just comment that if the tolerance of most meters is +/-15%, a reading of 7.0 could mean anything from 5.95 to 8.05.
*Just as an aside, I try to avoid referring to someone as a diabetic because that feels as if they are being defined by their diabetes. I wonder if the correct thing, therefore, is not to define someone without diabetes by their non-diabeticness and avoid calling them a non-diabetic. Perhaps I am just over-thinking it all.