𝐏𝐮𝐩𝐩𝐲 𝐔𝐧𝐝𝐞𝐫 𝟏𝟔 𝐖𝐞𝐞𝐤𝐬? 𝐓𝐡𝐢𝐬 𝐂𝐚𝐧’𝐭 𝐖𝐚𝐢𝐭. 🐾 If your puppy is under 16 weeks old, you’re in the most important training window of their entire life. The critical socialization period closes around 4 months — and what your puppy experiences now plays a huge role in whether they grow up to be a confident, calm, well-adjusted dog… or struggle later with fear, reactivity, and anxiety. Socialization isn’t just playing with other dogs. It’s learning how to feel safe and relax