Because we actively put people in the spotlight when discussing solutions or issues. Sometimes it's a whiteboard, sometimes it's a shared coding session, or something else. We use whiteboards extensively, and there is a good reason people do this in teamwork from educations all the way to the very top of engineering teams.

I have had a team that wanted to just chat on Slack and approach the tasks in a divide'n'conquer fashion. It does not work, and introducing a "lead architect" to structure everything is like pulling the reins of a mule - it will move backwards. Everyone needs to participate and feel shared ownership.

So if people cannot code simple shit on a whiteboard, it's my experience that they are a poor fit for this way of working.