Please elaborate how it's better in person? Remote: I can see and hear the person. I can see their screen. I can copy past back and forth (as can they) through the screen sharing app. I can invite others into the training pretty much instantly. I can send links and commands typed properly in the chat. User can record session for later.

In person: Usually have to face the person or the screen, can't see both. I have to write down commands and pass them, or type them myself. There is a delay finding others if we need to talk to them. More chance to transpose commands incorrectly by the user. Harder to record the session without losing parts.