I think it is worth noting that if it becomes cost effective to have a robotic arm setting up your coffee and enough customers appreciate the intrinsic benefits

I think it is worth noting that if it becomes cost effective to have a robotic arm setting up your coffee and enough customers appreciate the intrinsic benefits, businesses will move towards that direction. In the future, we might see human-led coffee shops as a niche market! In terms of human interaction, just like in the past, humans will always find ways to get their share of interaction.