Why did this video get millions of views?

In this Sept. 13, 2018, file photo, video game character Cappy plays a card game with his brother, who has Down syndrome.

Cappy, whose father is a paraplegic, played the game at the family’s home in East Orange, New Jersey.

(AP Photo/Patrick Semansky, File)The video, posted on Facebook on Saturday, was the second video in as many days featuring Down syndrome characters.

Earlier this month, a video game show aired a series of videos featuring the same characters.

The video of Cappy’s brother, Jack, was also shared on Facebook, and the video of his mother, Janice, was shared on Instagram and Vine.