It’s not all about wheelchairs - chronic pain, neurodiversity, and mental health are all relevant too, and learning to talk with clients about what they need and how they experience pleasure is essential.
Personally, I don’t get offended by genuine curiosity, even if the question is annoying or cliché. However, when someone asks me, “What’s the craziest thing you’ve done?” my response is usually a pretty dramatic and dismissive eye roll.
Consent is conditional by design, it requires specific circumstances and/or conditions to be maintained continuously. The introduction of money or some material good as a requisite condition does not negate this basic fact.