why is instagram asking for a video selfie

A video selfie is a video you take selfie-style and turn your head in different directions. The movement helps Instagram avoid classifying altered photos or videos as the actual person. Instagram is exploring novel ways to approach age verification. The minimum age to use Instagram is 13 years old, and Instagram wants to ensure that users changing their age are truthfully doing so. If users are under 18, Instagram aims to provide them with age-appropriate experiences. So if you change your age on Instagram from under 18 to over 18, Instagram will ask for age verification.