Well, I think most would prefer that their clients stay alive because fairly or not, if they die, there is a connotation that the T wasn't effective. There is also the potential for legal action that most would prefer to avoid. And I think implicit in the profession's philosophy--not every individual practitioner necessarily--is to protect life. That even holds true within most mainstream medical practice philosophy, even among those involved strictly with palliative care.

Beyond the cultural logistics, I think it can be much the same in any "helping" profession. I would prefer that my students not kill themselves. Have I experienced student suicides: yes. While there was no reason for me to feel any responsibility for their actions, I felt regret about their actions; and had they confided in me, I would have done whatever I could have to support them in finding other alternatives. I don't know why Ts would be exempt from such a basic response.