Dear lecturePT,
have you noticed that the more you write, the more we learn about you?
Certainly, a lot of this information would have been helpful as a start.
See it from a distance: You are new to this Forum and post 5 times in one day. 4 out of 5 posts are about selling books (by the way: check my comments please - I never said that you are 'selling' them to soncis).
None of them with any further information but to contact you. There are no credentials that you a Physical Therapist and you are happy to educate and offer books to a layman without any questions, which questions whether you actually are a Physical Therapist. Your suggestions that sonics lives rural, does not have access to health facilities or health care professionals, maybe his elderly family dislikes hospitals and that they might not have money to access a hospital is just as guessed as mine. So, you are just as judgemental as I appear to be.
This whole scenario is highly suspicious. Look through the Forum and you will find that this happens a few times a year in exactly this manner. Actually, it happened on the same day that you posted, that someone else started using the Forum to sell his books in the same manner. So it wasn't your intentions that are unethical, it was they way in which you offered to teach a layman Physical Therapy.
The information that Physiotherapists should never offer advise without assessment of the patient or the situation first is neither culturally incompetent nor showing lack of empathy and respect.
Kind regards,
Fyzzio