Nine-year-old Isabella Colello shops for just about everything online. She scrolls through the Amazon app on her phone at least once a day. She gets ideas from YouTube, searches on Google for things she wants and sends the links to her dad: Pink swimsuits, earrings, Adidas sneakers (he said yes); Gucci backpack (no). "It's like, I'll put 18 items in my cart, and we'll end … [Read more...] about Online shopping is on the rise among kids. Here’s how brands are courting them.