CarharttGirls' Redwood Jacket Sherpa Lined

Is this jacket tough like a usual Carhart jacket that takes years to break in, or is this soft enough for a child to wear and enjoy?

How does this jacket compare to the active jac?

What size do you recommend for an average 3 year old?

Is this jacket light enough for SoCal cooler nights/mornings? Need warmth in a light weight jacket for San Diego.