How many kcal do you burn?

[Gambatte]

During my usual cycling session of hill reps a woman walker curious of me repeating up-and-down asks
"How many kcal do you burn doing this?"

I didn't like because it put the emphasis on an aspect that I'd like receive less attention.
Sport should be for the pleasure of the effort outdoor. Not about "burning kcal".

Like going to the gym. Many people do it to LOOK fit. Not to be fit.
I find it kind of sad.

Well, there are worse things...