Jonathan Haidt on Instagram: "@smartphonefreechildhoodus made this great PSA about what happens when we give kids smartphones and social media. We overprotect kids in the real world and underprotect them online. Research shows early or unlimited access to social media can lead to: 😟 Increased anxiety + depression 🌙 Disrupted sleep ⏳ Fragmented attention span 🚫 Exposure to harmful content 🤝 Underdeveloped social skills Childhood should be about learning, friendships, and play — not spent scro