I've never had a formal discussion about boundaries with my T or PDoc, but I seem to have my own boundaries so it's never been really necessary to go over them. Plus they are part of a group practice that has a set of guidelines, so they don't really need to go over things like email, texting and phone calls - the group has its own policy.

As a practicing T, I think it is crucial to have boundaries firmly in place from the start. Even if it's only in your own head and you don't go over them formally with clients. If a client asks, you should be able to give a clear answer (with room for flexibility according to situations of course). But in general, I think T's can run into the most trouble when they have trouble setting boundaries in all parts of their lives. If they lack confidence and have trouble saying no to people in general seem to me like they wouldn't be very effective counselors.