Toller from Hungary

Hi guys, We are about to get a Toller puppy from another EU country. This means that they can only cross the border earliest with 15 weeks because they need to have the rabies shot. If I understand it correctly then usually 12 weeks at the breeder is a normal time.

What is your experience, is it a big difference to miss the 3 weeks of this important bonding time in that young age of a Toller puppy?

Appreciate your insights.