I have found that most of my clients like the idea of a crate early on but are in too much of a hurry to get the dog out of the crate and have free run of the house. Crating is seen as cruel or as a punishment to the dog. Nothing could be further from the truth.
The pioneering work of Scott and Fuller (1965) details periods of development. The Socialization period of 8-12 weeks is critical in the formation of social relationships. According to the researchers the Socialization period is the OPTIMAL time in which to expose your pup to people and other dogs and animals.