Is private practice a good idea?

Private practice can be a very good thing for a pupil.

The deciding factors are often the ability of the 'other person' to keep quiet unless necessary and the ability of the pupil to drive as nicely in their own vehicle as they do in ours.

If you have the time, there is an erticle in the 'Knowledge Base' entitled Private practice, a blessing or a curse?

Read the article at your leisure and while you are there. Check out the 'Knowledge Base'. You might find something else that is useful.