My t and I sit about 3 ft from each other. She has moved and sat next to me when she's showing me something or feels I need to be closer to her. She always asks if it's okay first. I like her sitting next to me, but also panic a bit because of the closeness. Her and I have sat on the ground together just once, and she said I looked much more comfortable on the ground. She also said it was interesting for her too, because she usually sits a certain way in her role as a t and sitting on the floor meant she had to adopt a different posture.