"Closing" a sale

My "better half" is having some training courses in insurance and financial planning. She is embarking on a new career and recently started talking a lot about "closing a sale". I objected to this since I believe that no consumer or client wants to be "closed". For me, a sale is the beginning of a relationship - to what she said that in Asia, to talk about the beginning of a relationship would mean something totally different. She also said that "closing a sale" would be the terminology that is used in the industry and that it cannot be changed.

I don't agree, actually. If there is no change in terminology, how can change happen in the mindset? How can any change happen at all?

Change is also about using different words to describe new developments. And to prepare for change also involves the usage of new words.