Hello Ina, you wrote, it is not problem about later selling, for example in the 8 weeks. I think, the socialisation is very important and separate of pupies from mother and other adult dogs is better.The puppy must be with people, not with dogs. The puppy can see other dogs on the walk or on the garden sometimes, but pppy must be with people. Write me, why is so much shy wolfdogs in the west Evropa? And in Italian ? Why is in the Czech republis less of them? I think, it is selling in the 6weeks and good socialisation. I look at gallery of your kennel. It was quick research, only. There are fotos 27? dogs. On the 11 fotos from show or other dog´s actions are shy wolfdogs ( with tail under stomach). I like character of 7 dogs only( Caya,Chester, Clint, Ela, Erin, Farin, Freya). Other 17 dogs have fotos too. But we don´t see the character, because the fotos are from walking, from garden from home. It is normal situation. Really character we can see for example on the show.
So, where is problem? Bad your socialisation? Or do you sold them later? Or bad socialisation of owners?
My opinion is: 6weeks-ideal, under 6weeks- pointless soon, after 6weeks- not good ( or breeder must do perfect socialisation and take puppies to strange people).
PS: Sorry about my research in your kennel