You can’t expect a Pitbull to figure out what you would like him to do (or don’t want him to do) unless you show him what your expectations are. And your Pitbull won’t be trained properly or be willing to heed your commands unless you use efficient training methods.
Pitbull training can be started at any age, the sooner the better. You can start simple training with your puppy as soon as he or she has settled into his/her new home. Adult Pit Bulls are as well receptive to training, although several might be less keen or quick to learn than a younger Pitbulls.
Done correctly, pit bull training should be fun, both for you and your pit, as well as exercising his brain and reinforcing the good quality relationship between you.