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.
At age 35 I quit an unfulfilling corporate job and started sex work as an independent full service kink friendly switch. My early days were filled with wild situations and marked by an utter lack of self preservation.
Whether you smell good. Whether you’re freshly shaved. Whether you’ve bothered to put on a clean shirt. When you make an effort, your worker knows you’re investing more than just money into the encounter - that you see the meeting as a special occasion.
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.