Lined up like pawns

From pipSqueek - my wheel of life:

Every Friday from 8pm, there is line dancing session at my office building’s atrium. I was amazed at the huge crowd tonight and stood by the side watching them for awhile.

I dont get it. How is that dancing? They are just walking through memorised steps. I guess the word “line” included is because they dance in rows....

I can understand the purpose of participating. It is some form of exercise and yeah, it is fun. But to call it dancing? It’s just like calling chess a sport.

Don't you find it interesting that there is a place on this planet where people like to go line dancing in office buildings after work?