The puppy socialisation window (3-12 weeks) is the most important period for long-term dog welfare. Experiences during this time shape behavioural resilience throughout the dog's life.
The puppy socialisation window is a welfare-critical period whose importance cannot be overstated. A puppy that misses appropriate diverse experiences during this time carries a legacy of fear and anxiety that affects every aspect of its life - vet visits, strangers, traffic, other dogs. The welfare cost of under-socialisation is measured in years of anxiety, the behaviour problems that result from fear, and the relinquishments that occur when owners cannot manage a fearful adult dog. Prioritising socialisation, even with some managed disease risk, is the most impactful welfare investment in the first months of a puppy's life.