Wiggly is like a wearable Dance Dance Revolution jacket for your kids

Getting kids moving in the age of YouTube and Fortnite can be a mammoth task for parents. That's partly why kids fitness trackers, like those from Garmin and Fitbit, aim to make exercise a little more fun. Wiggly, available on Kickstarter now for $169, is taking that idea to another level. It's a brightly colored…