A good quality seller has a particular attribute of being careful about the homes that they are sending their trained kittens to. Moreover they would always offer and provide their help to the people whom they sell the pet kittens to, whether it is before the birth of the kitten or after their birth.
A breeder (seller) who is not too keen to offer advice or assistance to their respective buyers are not fit enough to be sellers of cats and kittens. But while good breeders should always be at their customers’ beck and call, customers should always have a certain level of realization and empathy for their breeders as it could be also possible they are not available at some times nevertheless a good breeder should always be able to provide their guidance be it theoretical or practical to the new buyers whom they have sold the kittens to.