What mobile-specific issues cause cart abandonment?

As a Shopify store owner focusing on fashion accessories, I've been pulling my hair out over mobile cart abandonment. Our site looks great on desktop, but something's seriously broken on mobile. I'm seeing high mobile traffic from Instagram ads, but our conversion rate is embarrassingly low—like 0.5% compared to 2.5% on desktop. When I dig into analytics, I notice users are adding items to cart but rarely completing purchases. They're scrolling, they're interested, but something is stopping them from checking out. I've watched session recordings, and it's painful—tiny buttons, forms that don't auto-fill, checkout pages that look like they were designed for a desktop and shrunk down. My developers keep saying 'it looks fine', but our numbers tell a different story. Mobile shoppers are impatient. If they hit even one small friction point, they're gone. And with over 70% of our traffic coming from mobile, this isn't just a minor issue—it's killing our potential revenue. I need a solution that understands mobile shoppers' unique behaviors and can dynamically adjust the shopping experience to keep them engaged and moving toward purchase.