What is the woman’s purpose to have such a conversation?

W: Philip, have you chosen a physical education class yet for this semester?
M: No. Why?
W: You’ve got to take rock-climbing. We just had the first class and it looks like it is going to be great.
M: You think I should take rock-climbing? You’ve got to be kidding. Besides, how can they teach rock-climbing when it’s completely flat around here?
W: It really does matter. You cannot just start climbing without any training. You had to get in shape, learn how to use the ropes, the belts, and the buckles. There’s a lot of preparation first.
M: You don’t think it is just a little bit dangerous?
W: Not at all if you know how to use the safety equipment, which is by the way, pretty hi-tech. The ropes are made of elastic fabrics that stretch a little, the shoes have special grapes on the bottom and the helmets are made of some kind of special plastic. You have to learn how to use all these before you do any real climbing.
M: Well, what’s the appeal? We will spend the whole semester studying something we do not actually get to do.
W: We will take a climbing trip during spring break.
M: OK, it is not my cup of tea. You just go ahead. Wish you enjoy your training and your sightseeing.