[robinhuerta]

Please remember this is a GSD puppy.......the breed standard states that they are "aloof" to strangers. Even though this is a "baby"...you are NOT part of it's pack.
The breeder's family & dogs are his/her pack.....he/she doesn't need to be "kissy faced" with you.
A pack of puppies consist of all temperaments....(independent puppy, alpha puppy, subordinate puppy, etc...) you get the idea....
When ALL the puppies needs are supplied by YOU.....the puppy, will bond....it's natural balance.
I am not saying that THIS puppy or breeder has the right puppy for your wants or needs.....I am only stating my opinion on GSD puppies in general.....again...all puppies are different.
My post is only my personal opinion regarding, independent-confident puppies.
If YOU the potential buyer, is having doubts....then absolutely find a different litter to choose from. You should always be confident in YOUR decision.....
again...JMO
Robin