Geesh, that's really closed off of your T to not answer a basic question like that. Hmph. Most people enjoy being asked that question so they can talk about why they chose their career! My T makes it well known why she chose to be a T. Maybe you want to know her motivations, maybe its just because this is something that practically everyone in the WORLD talks about and makes common knowledge and there is no harm in just asking, maybe you want to make sure she is doing this because she cares about people and genuinely wants to be there doing her job.