This is a much easier question to answer.

"That wasn't in the official background material, so if I had to answer right away and couldn't wait on an advisory from yourself or Asmodia, I would tell him that I don't know, but my guess is that the wizards here are probably all native-born because that helps with passing the Security screening.  I've seen non-Chelish wizards in Cheliax ever but did mostly keep to Ostenso wizard academy while I was there, and I wasn't in a big town before then."

This is a much easier question to answer.

"That wasn't in the official background material, so if I had to answer right away and couldn't wait on an advisory from yourself or Asmodia, I would tell him that I don't know, but my guess is that the wizards on-site all look native-born probably because that helps with passing the Security screening.  I've seen non-Chelish wizards in Cheliax ever but did mostly keep to Ostenso wizard academy while I was there, and I wasn't in a big town before then."