
Hi welshie
I'd be cautious of having a puppy from any breeder that had not ensured they'd seen a lot of people, all shapes, ages, sizes, in all manner of situations inside and outside the home front by the time they were 8 weeks never mind 12 weeks - and this whether a toy or giant breed and anything in between ........
As for a
slightly less outgoing - rather than
shy pup - in a litter, then if it stands out as being clearly the pick without question on type and construction it may be worth a gamble however if it's a close call on either issue with another pup which has a bit of 'attitude' then for the show ring that could make the judgement call less risky and I'd go for the second mentioned one. Attitude, confidence, x-factor - whatever you want to call it rightly or wrongly plays a part in decisions and in breeds where correct type and conformation are present in sufficient numbers for judges to be picky, voila, cue the 'showing fool'
Taking on a less than confident pup with a view to show ring success is not
usually wise but of course there will always be exceptions. Much will depend IMO on whether this pup being withdrawn is inherited through nature or the result of insufficient socialising during nurture.
HTH a little towards your decision,
best wishes Teri