1) Characters: Multi-cultural cute babies and attractive adults 2) Catchy music – rhythm 3) Humour of incongruity. “Look at those babies doing adult dancing” 4) Brevity of the edit. It’s quick and short. 5) The concept – it’s a moment of magic. Elements all contribute. And no spoken words are required to understand the story – so barriers to enjoyment are low.
Also important: Branding is non-intrusive, so there’s no embarrassment about sharing this video.
Or if we look below the surface, has it hit a nerve because it’s a representation of the “infantalising” nature of modern consumerism? Adults are encouraged to remain children for longer, so they’ll consumer more?