No. A tutor cannot host a private session meant exclusively for one learner. While tutors can still host a session if only one learner shows up, tutors cannot intentionally exclude other learners. All sessions have to be publicly available for safety and accessibility reasons.
If you are planning a session for a specific learner, please add a detailed description of what you plan to cover in the description so other learners can join if it's relevant to them.
Note: The only exemptions to this policy are through limited structured program offerings that are still in the experimental phase.