“Regarding the Bible, St. Paul told Timothy to treat older women as mothers and younger women as sisters, with absolute purity. (1 Tim. 5:2) It is reasonable to assume that St. Paul considered this a reasonable instruction, that Timothy could, fortified by the Holy Spirit, do so.”
That is the ideal. However the monkey brained human nature that often is exhibited is far from the ideal. Case in point: we attended sensitivity training and sexual harassment training in the military and one time it was given to us by our Chief of Staff (06) Captain and he basically quoted 1 Tim 5:2 to treat them like sisters. Later it was revealed that our sensitive Chief of Staff was severely reprimanded for shagging his executive secretary, who usurped this imaginary power when dealing with command, and revealed the whole affair when being reprimanded for creating strife amongst the crew whilst overextending her authority.
Yes, that is true. However, I was addressing the author's contention that it is not "Biblical" to propose that men and women have the capacity to interact with one another chastely. Rather, this is the default contention of the New Testament: that with God's grace, with the practice of Christian discipline and virtue, with a mind conformed to Christ, we can expect more of ourselves than of apes.
If one is not Christian, of course, then these points probably aren't relevant.